modules/exim/templates/eximconf.erb

   1 ##
   2 ## THIS FILE IS UNDER PUPPET CONTROL. DON'T EDIT IT HERE.
   3 ## USE: git clone git+ssh://$USER@puppet.debian.org/srv/puppet.debian.org/git/dsa-puppet.git
   4 ##
   5
   6 # This is the main exim4 configuration file based on the 28.08.05 version by
   7 # ametzler
   8
   9 # The configuration file uses a set of rules to generate an
  10 # acceptable mail environment for debian.org machines. It deviates
  11 # considerably from what could be considered a standard Exim configuration.
  12
  13 # This configuration file brings in the necessary information from
  14 # other databases stored in /etc/exim4/ and the files distributed by ud-ldap
  15
  16 # This file is independent of the local host, it should not be changed
  17 # per machine. primary_hostname is used in all places that require per-host
  18 # settings.
  19
  20 # The configuration files in /etc/exim4 are as follows:
  21 #  locals - This is a list of domains that are considered local. A local
  22 #           domain is essentially one for which deliveries to /var/mail
  23 #           will be attempted. The users available for local delivery
  24 #           come from /etc/passwd and /etc/aliases. Wildcards are not
  25 #           permitted.
  26 #  virtualdomains - This is a list of all virtual domains. A virtual domain
  27 #           is much like a local domain, execpt that the delivery location
  28 #           and allowed set of users is controlled by a virtual domain
  29 #           alias file and not /etc/passwd. Wildcards are permitted
  30 #  relayhosts - Hostnames that can send any arbitarily addressed mail to
  31 #           us. This is primarily only useful for emergency 'queue
  32 #           flushing' operations, but should be populated with a list
  33 #           of trusted machines. Wildcards are not permitted
  34 #  bsmtp_domains - Domains that we deliver locally via bsmtp
  35 #  submission-domains - Domains for which mail will be accepted via the
  36 #           submission port
  37 <%- if @is_mailrelay -%>
  38 #  mailhubdomains - Domains for which we are the MX, but the mail is relayed
  39 #           elsewhere.  This is designed for use with small volume or
  40 #           restricted machines that need to use a smarthost for mail
  41 #           traffic.  We will relay for them based on ssl cert validation
  42 #           but we need to teach Exim how to route the mail to them.  This is
  43 #           that list.
  44 <%- end -%>
  45
  46 # From /var/lib/misc / UD:
  47 #
  48 # mail-forward.cdb - aliases for @d.o
  49 # user-forward.cdb - aliases for @thishost.d.o
  50
  51 # Exim's wildcard mechanism is a bit odd in that to say "any address in
  52 # debian.org including debian.org" you must use two patterns,
  53 #   *.debian.org
  54 #   debian.org
  55 # Also you can only place a * before a . and as the first char in a string.
  56 # Wildcards always match last so they may be used as a catchall.
  57
  58 # Further details can be found in each of the files.
  59
  60 # Useful Exim commands:
  61 #  exim4 -qf  - Try sending all messages right now, including frozen ones
  62 #  exim4 -bt foo@blah - Write what Exim would do if it saw the address
  63 #                      Great for testing virtual domains and forward files
  64
  65 # Special Features for users:
  66 # .forward-foo - is understood as an extension address for bar-foo@cow.com
  67 # .forward-default - is understood to be a catch all for bar-*@cow.com
  68 # .procmailrc - with no .forward file invokes procmail for delivery
  69 #               automatically.
  70
  71 # For virtual domains the first lookup is done against a linear text
  72 # database called 'aliases', then .forward files are consulted. Exim
  73 # filtering is available for these .forward files only. .forward-default
  74 # is the universal catch all for everything not handled.
  75
  76 # Heuristic check (none bad enough to cause a hard reject, but in aggregate
  77 # will trigger things like rcpt to rate limiting or possibly a reject if
  78 # enough hits are triggered).
  79 #
  80 # value is stored in acl_c_scr
  81
  82 ######################################################################
  83 #                    MAIN CONFIGURATION SETTINGS                     #
  84 ######################################################################
  85
  86 <%- if @heavy -%>
  87  perl_startup = do '/etc/exim4/exim_surbl.pl'
  88 <%- end -%>
  89
  90 # These options specify the Access Control Lists (ACLs) that
  91 # are used for incoming SMTP messages - after the RCPT and DATA
  92 # commands, respectively.
  93
  94 acl_smtp_helo = check_helo
  95 acl_smtp_rcpt = ${if ={$interface_port}{587} {check_submission}{check_recipient}}
  96 acl_smtp_data = check_message
  97 <%- if @heavy -%>
  98 acl_smtp_mime = acl_check_mime
  99 <%- end -%>
 100 acl_smtp_predata = acl_check_predata
 101
 102 # accept domain literal syntax in e-mail addresses. To actually make use of
 103 # this a router is also required
 104 allow_domain_literals = true
 105
 106 # This setting defines a named domain list called
 107 # local_domains. It will be referenced
 108 # later on by the syntax "+local_domains".
 109 # Other domain and host lists may follow.
 110 # @ is the local FQDN, @[] matches the IP adress of any local interface.
 111
 112 domainlist local_domains = @ : \
 113     @[] : \
 114     localhost : \
 115     ${if exists {/etc/exim4/locals}{lsearch;/etc/exim4/locals}}
 116
 117 domainlist virtual_domains = partial-lsearch;/etc/exim4/virtualdomains
 118
 119 domainlist submission_domains = ${if exists {/etc/exim4/submission-domains}{/etc/exim4/submission-domains}{}}
 120
 121 domainlist bsmtp_domains = ${if exists {/etc/exim4/bsmtp}{partial-lsearch;/etc/exim4/bsmtp}{}}
 122
 123 domainlist handled_domains = +local_domains : +virtual_domains : +bsmtp_domains
 124
 125 domainlist ourself_and_handled = $primary_hostname : +handled_domains
 126
 127 localpartlist local_only_users = lsearch;/etc/exim4/localusers
 128
 129 localpartlist postmasterish = postmaster : abuse : hostmaster
 130
 131 hostlist debianhosts = <; ; 127.0.0.1 ; ::1 ; /var/lib/misc/thishost/debianhosts
 132
 133 hostlist reservedaddrs = 0.0.0.0/8 : 127.0.0.0/8 : 10.0.0.0/8 : 169.254.0.0/16 : 172.16.0.0/12 : 192.0.0.0/24 : 192.168.0.0/16 : 224.0.0.0/4 : 240.0.0.0/5 : 248.0.0.0/5
 134
 135 domainlist google_mxen = aspmx.l.google.com : gmail-smtp-in.l.google.com : \
 136                          *.aspmx.l.google.com : *.gmail-smtp-in.l.google.com
 137
 138 domainlist single_domain_mx = +google_mxen
 139 domainlist ipv4_only_domain_mx = +google_mxen
 140
 141 <%- if @is_mailrelay -%>
 142 # Domains we relay for; that is domains that aren't considered local but we
 143 # accept mail for them.
 144 domainlist mailhubdomains = lsearch;/etc/exim4/manualroute
 145
 146 <%- end -%>
 147 tls_certificate = /etc/exim4/ssl/thishost.crt
 148 tls_privatekey = /etc/exim4/ssl/thishost.key
 149 tls_try_verify_hosts = *
 150 tls_verify_certificates = /etc/exim4/ssl/ca.crt
 151 tls_crl = /etc/exim4/ssl/ca.crl
 152
 153 # The setting below causes Exim to do a reverse DNS lookup on all incoming
 154 # IP calls, in order to get the true host name. If you feel this is too
 155 # expensive, you can specify the networks for which a lookup is done, or
 156 # remove the setting entirely.
 157 host_lookup = *
 158
 159 # If this option is set, then any process that is running as one of the
 160 # listed users may pass a message to Exim and specify the sender's
 161 # address using the "-f" command line option, without Exim's adding a
 162 # "Sender" header.
 163
 164 untrusted_set_sender = *
 165
 166 # Some spam scanners (*cough* irritated *cough*) want the Sender field
 167 # to exist.  Appease them by not actually adding a Sender field.
 168
 169 local_from_check = false
 170
 171 # Some operating systems use the "gecos" field in the system password file
 172 # to hold other information in addition to users' real names. Exim looks up
 173 # this field when it is creating "sender" and "from" headers. If these options
 174 # are set, Exim uses "gecos_pattern" to parse the gecos field, and then
 175 # expands "gecos_name" as the user's name. $1 etc refer to sub-fields matched
 176 # by the pattern.
 177
 178 gecos_pattern = ^([^,:]*)
 179 gecos_name = $1
 180
 181 # Do *not* include the body of the original message in a bounce
 182 # The combination of bounce_return_message and bounce_return_body
 183 # allows us to return only the headers within a bounce
 184
 185 bounce_return_message = true
 186 bounce_return_body    = false
 187
 188 # This tells Exim to immediately discard error messages (ie double bounces).
 189 ignore_bounce_errors_after = 0s
 190 auto_thaw = 1d
 191 timeout_frozen_after=14d
 192
 193 message_size_limit = 100M
 194 message_logs = false
 195 smtp_accept_max_per_host = ${if match_ip {$sender_host_address}{+debianhosts}{0}{7}}
 196 <%- if @heavy -%>
 197 smtp_accept_max = 300
 198 smtp_accept_queue = 200
 199 smtp_accept_queue_per_connection = 50
 200 smtp_accept_reserve = 25
 201 <%- else -%>
 202 smtp_accept_max = 30
 203 smtp_accept_queue = 20
 204 smtp_accept_queue_per_connection = 10
 205 smtp_accept_reserve = 5
 206 <%- end -%>
 207 smtp_reserve_hosts = +debianhosts
 208
 209 split_spool_directory = true
 210 check_spool_inodes = 200
 211 check_spool_space  = 20M
 212
 213 delay_warning =
 214
 215 <%- if @heavy -%>
 216 message_body_visible = 5000
 217 queue_run_max = 50
 218 deliver_queue_load_max = 50
 219 queue_only_load = 35
 220 smtp_load_reserve = 20
 221 <%- else -%>
 222 queue_run_max = 5
 223 <%- if scope.lookupvar('::processorcount').to_s != 'undefined' -%>
 224 deliver_queue_load_max = <%= [scope.lookupvar('::processorcount').to_i,2].max * 5 %>
 225 queue_only_load = <%= [scope.lookupvar('::processorcount').to_i,2].max * 4 %>
 226 <%- else -%>
 227 deliver_queue_load_max = 10
 228 queue_only_load = 8
 229 <%- end -%>
 230 <%- end -%>
 231 queue_list_requires_admin = false
 232
 233 <%- if has_variable?("clamd") && @clamd -%>
 234 av_scanner = clamd:/var/run/clamav/clamd.ctl
 235 <%- end -%>
 236
 237 <%=
 238 ports = []
 239 out = "daemon_smtp_ports = "
 240 ports << 25
 241 if @mail_port  # if we have an overridden mail_port
 242   ports << @mail_port
 243 end
 244
 245 if @is_bugsmx
 246   ports << 587
 247 end
 248
 249 if @is_mailrelay
 250   ports << @smarthost_port
 251 end
 252
 253 out += ports.uniq.sort.join(" : ")
 254 out
 255 %>
 256
 257 admin_groups = adm
 258 remote_sort_domains = *.debian.org:*.debian.net
 259
 260 pipelining_advertise_hosts = !*
 261 tls_advertise_hosts = *
 262 smtp_enforce_sync = true
 263
 264 log_selector = \
 265                +tls_cipher \
 266                +tls_peerdn \
 267                +queue_time \
 268                +queue_time_overall \
 269                +deliver_time \
 270                +received_recipients \
 271                +sender_on_delivery \
 272                +return_path_on_delivery \
 273                +incoming_port \
 274                +unknown_in_list \
 275                +smtp_connection \
 276                +smtp_incomplete_transaction \
 277                +smtp_confirmation \
 278                +smtp_syntax_error \
 279                +smtp_no_mail \
 280                +smtp_protocol_error
 281
 282 received_header_text = Received: ${if def:sender_rcvhost {from $sender_rcvhost\n\t}\
 283                                  {${if def:sender_ident {from ${quote_local_part:$sender_ident} }}${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}\
 284                                  ${if and {{eq {$tls_certificate_verified}{1}}{def:tls_peerdn}}{from $tls_peerdn (verified)\n\t}}\
 285                                  by $primary_hostname ${if def:received_protocol {with $received_protocol}} ${if def:tls_cipher {($tls_cipher)\n\t}}\
 286                                  (Exim $version_number)\n\t\
 287                                  ${if def:sender_address {(envelope-from <$sender_address>)\n\t}}\
 288                                  id $message_exim_id${if def:received_for {\n\tfor $received_for}}
 289
 290 # macro definitions.
 291 # Do not wrap!
 292 MAX_SCAN_SIZE = 256000
 293 VDOMAINDATA = ${lookup{$domain}partial-lsearch{/etc/exim4/virtualdomains}{$value}}
 294 VSENDERDOMAINDATA = ${lookup{$sender_address_domain}partial-lsearch{/etc/exim4/virtualdomains}{$value}}
 295 WHITELIST = ${if match_domain{$domain}{+virtual_domains}\
 296             {${if exists {${extract{directory}{VDOMAINDATA}{${value}/whitelist}}}\
 297             {${lookup{$local_part}lsearch{${extract{directory}{VDOMAINDATA}{${value}/whitelist}}}{$value}{}}}{}}}\
 298             {/etc/exim4/whitelist} } : \
 299             ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-whitelist}{$value}{}}
 300 GREYLIST_LOCAL_PARTS = ${if match_domain{$domain}{+virtual_domains}\
 301                        {${if exists {${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}\
 302                        {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}{$local_part}{}}}{}}}\
 303                        {${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}}}} : \
 304                        ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}}
 305 <%- if @is_rtmaster -%>
 306 RT_SUBJECT = Subject: ${if and {{first_delivery}{match {${sg {$rh_Subject:}{\N\n\s+\N}{ }}}{\N(?is)(.*?)\[?debian rt\]?[:\s]*(.*)\N}}} {$1$2}{$h_subject:}}
 307 RT_QUEUE_MAP = /srv/rt.debian.org/mail/rt_queue_map
 308 <%- end -%>
 309
 310 keep_environment =
 311 add_environment =
 312
 313 ######################################################################
 314 #                        ACL CONFIGURATION                           #
 315 ######################################################################
 316 begin acl
 317
 318 acl_spamlovers:
 319   # There are a few profiles that don't want much smtp time checking of
 320   # mail.  It's easier to track them in one place
 321
 322   accept  condition      = ${if eq {$acl_m_prf}{PopconMail}}
 323   accept  condition      = ${if eq {$acl_m_prf}{BugsMail}}
 324   deny
 325
 326 acl_getprofile:
 327
 328   # Determine the mail profile for this recipient.
 329   # An empty string implies no match has been found.
 330
 331   warn    set acl_m_rprf =
 332
 333   warn    recipients     = survey@popcon.debian.org
 334           set acl_m_rprf = PopconMail
 335
 336   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 337
 338   warn    local_parts    = +local_only_users
 339           domains        = +local_domains
 340           hosts          = !+debianhosts
 341           set acl_m_rprf = localonly
 342
 343 <%- if @is_mailrelay -%>
 344   warn    local_parts    = +local_only_users
 345           domains        = +mailhubdomains
 346           hosts          = !+debianhosts
 347           set acl_m_rprf = localonly
 348
 349 <%- end -%>
 350   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 351
 352 <%- if @is_rtmaster -%>
 353   warn    domains        = rt.debian.org
 354           set acl_m_rprf = RTMail
 355
 356   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 357
 358 <%- end -%>
 359 <%- if @is_bugsmx -%>
 360   warn    domains        = bugs.debian.org
 361           set acl_m_rprf = BugsMail
 362
 363   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 364
 365 <%- end -%>
 366 <%- if @is_packagesmaster -%>
 367   warn    domains        = packages.debian.org
 368           set acl_m_rprf = PackagesMail
 369
 370   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 371
 372 <%- end -%>
 373 <%- if @is_packagesqamaster -%>
 374   warn    recipients     = owner@packages.qa.debian.org : postmaster@packages.qa.debian.org
 375           set acl_m_rprf = PTSOwner
 376
 377   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 378
 379   warn    senders        = :
 380           domains        = packages.qa.debian.org
 381           condition      = ${if match{$local_part}{\N^bounces+\N}}
 382           set acl_m_rprf = PTSListBounce
 383
 384   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 385
 386   warn    domains        = packages.qa.debian.org
 387           set acl_m_rprf = PTSMail
 388
 389   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 390
 391 <%- end -%>
 392   warn    recipients     = change@db.debian.org : changes@db.debian.org : chpasswd@db.debian.org : ping@db.debian.org : recommend@nm.debian.org
 393           set acl_m_rprf = DBSignedMail
 394
 395   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 396
 397   warn    domains        = +virtual_domains
 398           condition      = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction}}}}
 399           condition      = ${if eq{${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction}}}{$value}{}}}{markup}}
 400           set acl_m_rprf = markup
 401
 402   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 403
 404   warn    domains        = +virtual_domains
 405           condition      = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction}}}}
 406           condition      = ${if eq{${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction}}}{$value}{}}}{blackhole}}
 407           set acl_m_rprf = blackhole
 408
 409   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 410
 411   warn    domains        = +virtual_domains
 412           condition      = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction.cdb}}}}
 413           condition      = ${if eq{${lookup{$local_part}cdb{${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction.cdb}}}{$value}{}}}{markup}}
 414           set acl_m_rprf = markup
 415
 416   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 417
 418   warn    domains        = +virtual_domains
 419           condition      = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction.cdb}}}}
 420           condition      = ${if eq{${lookup{$local_part}cdb{${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction.cdb}}}{$value}{}}}{blackhole}}
 421           set acl_m_rprf = blackhole
 422
 423   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 424
 425   warn    domains        = +local_domains
 426           condition      = ${if eq{${lookup{$local_part}cdb{/var/lib/misc/${primary_hostname}/mail-contentinspectionaction.cdb}{$value}{}}}{markup}}
 427           set acl_m_rprf = markup
 428
 429   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 430
 431   warn    domains        = +local_domains
 432           condition      = ${if eq{${lookup{$local_part}cdb{/var/lib/misc/${primary_hostname}/mail-contentinspectionaction.cdb}{$value}{}}}{blackhole}}
 433           set acl_m_rprf = blackhole
 434
 435   accept  condition      = ${if !eq {$acl_m_rprf}{}}
 436
 437   warn    set acl_m_rprf = normal
 438
 439   accept
 440
 441 check_helo:
 442
 443   warn    set acl_c_scr    = 0
 444
 445 <%- if @is_mailrelay -%>
 446   accept  verify   = certificate
 447
 448 <%- end -%>
 449 <%- unless @use_smarthost -%>
 450   # These are in HELO acl so that they are only run once.  They increment a counter,
 451   # so we don't want it to increment per rcpt to.
 452
 453   warn    dnslists       = list.dnswl.org&0.0.0.3
 454           log_message    = Hit on list.dnswl.org for $sender_host_address
 455           set acl_c_scr  = ${eval:$acl_c_scr-30}
 456
 457   warn    dnslists       = list.dnswl.org&0.0.0.2
 458           log_message    = Hit on list.dnswl.org for $sender_host_address
 459           set acl_c_scr  = ${eval:$acl_c_scr-20}
 460
 461   warn    dnslists       = list.dnswl.org
 462           log_message    = Hit on list.dnswl.org for $sender_host_address
 463           set acl_c_scr  = ${eval:$acl_c_scr-10}
 464
 465   warn    condition      = ${if isip {$sender_helo_name}}
 466           log_message    = remote host used IP address in HELO/EHLO greeting
 467           set acl_c_scr  = ${eval:$acl_c_scr+20}
 468
 469   warn    !hosts         = +debianhosts
 470           condition      = ${if eq{$host_lookup_failed}{1}}
 471           set acl_c_scr  = ${eval:$acl_c_scr+20}
 472
 473   warn    !hosts         = +debianhosts
 474           condition      = ${if eq{$host_lookup_failed}{0}}
 475           condition      = ${if match{$sender_host_name}{\N(^[^\.]*[0-9]\-+[0-9]|^[^\.]*[0-9]{5,}[^\.]|^([^\.]+\.)?[0-9][^ \.]*\.[^\.]+\..+\.[a-z]|^[^\.]*[0-9]\.[^\.]*[0-9]-[0-9]|^(dyn|cable|dhcp|dialup|ppp|adsl)[^\.]*[0-9])\N}}
 476           set acl_c_scr  = ${eval:$acl_c_scr+20}
 477
 478   warn    !hosts         = +debianhosts
 479           condition      = ${if match{$sender_helo_name}{\N(^[^\.]*[0-9]\-+[0-9]|^[^\.]*[0-9]{5,}[^\.]|^([^\.]+\.)?[0-9][^ \.]*\.[^\.]+\..+\.[a-z]|^[^\.]*[0-9]\.[^\.]*[0-9]-[0-9]|^(dyn|cable|dhcp|dialup|ppp|adsl)[^\.]*[0-9])\N}}
 480           set acl_c_scr  = ${eval:$acl_c_scr+20}
 481
 482   warn    !hosts         = +debianhosts
 483           dnslists       = dul.dnsbl.sorbs.net
 484           set acl_c_scr  = ${eval:$acl_c_scr+15}
 485
 486   # If the sender's helo name is empty, the message will be rejected later
 487   # because the helo is empty.  If the rDNS lookup failed, we are already
 488   # going to greylist them, so no sense worrying about it here.  Finally,
 489   # if rDNS does not match helo name (both lower cased first), greylist.
 490
 491   warn    !hosts         = +debianhosts
 492           condition      = ${if !eq {$host_lookup_failed}{1}}
 493           condition      = ${if def:sender_helo_name}
 494           condition      = ${if !eq {${lc:$sender_helo_name}}{${lc:$sender_host_name}}}
 495           log_message    = HELO doesn't match rDNS
 496           set acl_c_scr  = ${eval:$acl_c_scr+8}
 497
 498   # Regexes of doom
 499   # matches 098325879 - looks fishy
 500
 501   warn condition        = ${if and { \
 502                                      { !match{$sender_helo_name}{\N^\[.+\]$\N} } \
 503                                      { !match{$sender_helo_name}{\N^(?i)((?=[^-])[a-z0-9-]*[a-z0-9]\.)+[a-z]{2,6}$\N} } \
 504                                     } \
 505                             }
 506        log_message      = non-FQDN HELO
 507        set acl_c_scr    = ${eval:$acl_c_scr+12}
 508
 509   # Matches DOMAIN99.com - looks bad
 510
 511   warn condition       = ${if match {$sender_helo_name}{\N^[A-Z]+[A-Z0-9\-]+\.[A-Za-z0-9]+$\N}}
 512        log_message     = SHOUTING HELO
 513        set acl_c_scr   = ${eval:$acl_c_scr+7}
 514
 515   # Random HELO (run of 7 consonants) (constructed by viruses).  We purposefully
 516   # skip matching on machines named .*smtp.*, since that's 4 already.  This is a fairly
 517   # naive test, so it's not worth much
 518
 519   warn condition       = ${if !match {${lc:$sender_helo_name}}{smtp}}
 520        condition       = ${if match {${lc:$sender_helo_name}}{\N^[a-z0-9]+\.[a-z]+$\N}}
 521        condition       = ${if match {${lc:$sender_helo_name}}{\N.*[bcdfghjklmnpqrstvwxz]{7,}.*\.[a-z]+$\N}}
 522        log_message     = random HELO
 523        set acl_c_scr   = ${eval:$acl_c_scr+5}
 524
 525 <%- else -%>
 526   drop !hosts          = +debianhosts
 527        log_message     = mail from non-d.o host
 528        message         = Interesting.  I doubt that should have happened.
 529
 530 <%- end -%>
 531   # Implicit, but simpler to just say it
 532   accept
 533
 534 #!!# ACL that is used after the RCPT command on the submission port
 535 check_submission:
 536
 537   accept  hosts = +debianhosts
 538
 539 <%- if @is_mailrelay -%>
 540   accept  verify   = certificate
 541
 542 <%- end -%>
 543   # Defer after too many bad RCPT TO's.  Legit MTAs will retry later.
 544   # This is a rough pass at preventing address harvesting or other mail blasts.
 545
 546   defer  log_message   = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count
 547          message       = Too many bad recipients, try again later
 548          condition     = ${if > {${eval:$rcpt_fail_count}}{3}}
 549
 550   defer
 551           ratelimit      = 5 / 60m / per_rcpt / $sender_host_address
 552           !hosts         = +debianhosts
 553           message        = sorry, only 5 reports per hour for submission
 554
 555   accept  domains  = +local_domains
 556           hosts    = +debianhosts
 557           endpass
 558           verify   = recipient
 559
 560 <%- if @is_mailrelay -%>
 561   accept  domains  = +mailhubdomains
 562           endpass
 563           verify   = recipient/callout=30s,defer_ok,use_sender,no_cache
 564
 565 <%- end -%>
 566   accept  domains  = +submission_domains
 567           endpass
 568           verify   = recipient
 569
 570   deny    message = relay not permitted
 571
 572 #!!# ACL that is used after the RCPT command
 573 check_recipient:
 574
 575 <%- if @is_mailrelay -%>
 576   accept  verify   = certificate
 577
 578 <%- end -%>
 579   accept  hosts = <; ::1 ; 127.0.0.1 ; @
 580   warn    acl           = acl_getprofile
 581           condition     = ${if eq{$acl_m_prf}{}}
 582           set acl_m_prf = $acl_m_rprf
 583
 584   defer   condition     = ${if !eq{$acl_m_prf}{$acl_m_rprf}}
 585           message       = Different profile, please retry
 586           log_message   = Only one profile at a time, please
 587
 588   # Defer after too many bad RCPT TO's.  Legit MTAs will retry later.
 589   # This is a rough pass at preventing address harvesting or other mail blasts.
 590
 591   defer  log_message   = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count
 592          !acl          = acl_spamlovers
 593          message       = Too many bad recipients, try again later
 594          !hosts        = +debianhosts
 595          condition     = ${if > {${eval:$rcpt_fail_count}}{3}}
 596
 597   # Dump spambots that are so stupid they say helo as our IP address
 598
 599   drop   !hosts        = +debianhosts
 600          !acl          = acl_spamlovers
 601          condition     = ${if eq {$sender_helo_name}{$interface_address}}
 602          message       = HELO mismatch Forged HELO for ($sender_helo_name)
 603
 604   # Also for spambots that say helo as us or one of our domains
 605
 606   drop   !hosts        = +debianhosts
 607          !acl          = acl_spamlovers
 608          condition     = ${if match_domain{$sender_helo_name}{+ourself_and_handled}}
 609          condition     = ${if !match{$sender_host_name}{${rxquote:$sender_helo_name}\N$\N}}
 610          message       = HELO mismatch Forged HELO for ($sender_helo_name)
 611
 612   # This logic gives you a list of commonly forged domains in helo to reject against
 613
 614   warn set acl_m_frg   = ${lookup{$sender_helo_name} \
 615                            nwildlsearch{/etc/exim4/helo-check} \
 616                           {${if eq{$value}{}{$sender_helo_name}{$value}}}{}}
 617
 618   # This is a failsafe in case DNS fails - we defer instead of hard reject if they
 619   # say helo as a name in the list but we can't look them up
 620
 621   defer  !hosts        = +debianhosts
 622          !acl          = acl_spamlovers
 623          condition     = ${if !eq{$acl_m_frg}{}}
 624          condition     = ${if eq{$sender_host_name}{}}
 625          condition     = ${if !eq{$host_lookup_failed}{1}}
 626          message       = Access temporarily denied. Resolve failed PTR for $sender_host_address
 627
 628   # If DNS works, go ahead and reject them
 629
 630   drop   !hosts        = +debianhosts
 631          !acl          = acl_spamlovers
 632          condition     = ${if and { {!eq{$acl_m_frg}{}}{!match{$sender_host_name}{${rxquote:$acl_m_frg}\N$\N}}}}
 633          message       = HELO mismatch Forged HELO for ($sender_helo_name)
 634
 635   # disabled accounts don't even get local mail.
 636   deny   domains       = +virtual_domains
 637          condition    = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/mail-disable}}}\
 638                                      {${lookup{${extract{1}{-}{$local_part}}}lsearch{${extract{directory}{VDOMAINDATA}{${value}/mail-disable}}}{true}{false}}}\
 639                                      {}}
 640          message       = ${lookup{${extract{1}{-}{$local_part}}}lsearch{${extract{directory}{VDOMAINDATA}{${value}/mail-disable}}}{$value}}
 641
 642   deny   local_parts   = lsearch;/var/lib/misc/$primary_hostname/mail-disable
 643          domains       = +local_domains
 644          message       = ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-disable}{$value}}
 645
 646   deny   domains       = +virtual_domains
 647          local_parts   = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/localonly}}}\
 648                                      {${extract{directory}{VDOMAINDATA}{${value}/localonly}}}\
 649                                      {}}
 650          hosts         = !+debianhosts
 651          message       = mail for <$local_part@$domain> only accepted from debian.org machines
 652
 653   # Accept if the source is local SMTP (i.e. not over TCP/IP).
 654   # We do this by testing for an empty sending host field.
 655   accept  hosts = :
 656
 657   deny    domains       = +handled_domains
 658           local_parts   = ^[.] : ^.*[@%!/|]
 659
 660   deny    domains       = !+handled_domains
 661           local_parts   = ^[./|] : ^.*[@%!] : ^.*/\\.\\./
 662
 663   deny    condition     = ${lookup{$sender_address_local_part}lsearch{/etc/exim4/localusers}{true}}
 664           sender_domains= +local_domains
 665           hosts         = !+debianhosts
 666           message       = mail from <$sender_address> not allowed externally
 667
 668   deny    sender_domains= +virtual_domains
 669           condition     = ${if exists {${extract{directory}{VSENDERDOMAINDATA}{${value}/localusers}}}}
 670           condition     = ${lookup{$sender_address_local_part}lsearch{${extract{directory}{VSENDERDOMAINDATA}{${value}/localusers}}}{true}}
 671           hosts         = !+debianhosts
 672           message       = mail from <$sender_address> not allowed externally
 673
 674   deny    sender_domains= +virtual_domains
 675           condition     = ${if exists {${extract{directory}{VSENDERDOMAINDATA}{${value}/neversenders}}}}
 676           condition     = ${lookup{$sender_address_local_part}lsearch{${extract{directory}{VSENDERDOMAINDATA}{${value}/neversenders}}}{true}}
 677           message       = no mail should ever come from <$sender_address>
 678
 679   warn    condition     = ${if eq{$acl_m_prf}{localonly}}
 680           set acl_m_lrc = ${if eq{$acl_m_lrc}{}{$local_part@$domain}{$acl_m_lrc, $local_part@$domain}}
 681
 682 <%- if @is_packagesmaster -%>
 683   warn    condition      = ${if eq {$acl_m_prf}{PackagesMail}}
 684           condition      = ${if eq {$sender_address}{$local_part@$domain}}
 685           message        = X-Packages-FromTo-Same: yes
 686
 687 <%- end -%>
 688   deny    condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 689           !verify        = sender
 690
 691   warn    !hosts         = +debianhosts
 692           condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 693           condition      = ${if >{${eval:$acl_c_scr+0}}{0}}
 694           ratelimit      = 10 / 60m / per_rcpt / strict / $sender_host_address
 695           log_message    = Sender rate $sender_rate / $sender_rate_period (limit: $sender_rate_limit)
 696
 697   defer   !hosts         = +debianhosts
 698           condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 699           condition      = ${if >{${eval:$acl_c_scr+0}}{0}}
 700           ratelimit      = 10 / 60m / per_rcpt / $sender_host_address
 701           message        = slow down (no reverse dns, mismatched ehlo, dialup, or in blacklists)
 702
 703 <%- if has_variable?("policydweight") && @policydweight -%>
 704   # Check with policyd-weight
 705   warn  !hosts         = +debianhosts
 706         condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 707         set acl_m_pw   = ${readsocket{inet:127.0.0.1:12525}\
 708                           {request=smtpd_access_policy\n\
 709                            protocol_state=RCPT\n\
 710                            protocol_name=${uc:$received_protocol}\n\
 711                            helo_name=$sender_helo_name\n\
 712                            queue_id=$message_exim_id\n\
 713                            sender=$sender_address\n\
 714                            recipient=$local_part@$domain\n\
 715                            recipient_count=$rcpt_count\n\
 716                            client_address=$sender_host_address\n\
 717                            client_name=$sender_host_name\n\
 718                            reverse_client_name=$sender_host_name\n\
 719                            instance=$sender_host_address.$sender_address.$sender_helo_name\n\n}\
 720                           {20s}{\n}{socket failure}}
 721
 722   # Defer on socket error
 723   defer !hosts         = +debianhosts
 724         condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 725         condition      = ${if eq{$acl_m_pw}{socket failure}}
 726         message        = Cannot connect to policyd-weight. Please try again later.
 727
 728   # Set proposed action to $acl_m_act and message to $acl_m_mes
 729   warn  !hosts         = +debianhosts
 730         condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 731         set acl_m_mes  = ${extract{action}{$acl_m_pw}}
 732         set acl_m_act  = ${sg{$acl_m_pw}{\Naction=[^ ]+ (.*)\n\n\N}{\$1}}
 733
 734   # Add X-policyd-weight header line to message
 735   warn  !hosts         = +debianhosts
 736         condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 737         message        = $acl_m_mes
 738         condition      = ${if eq{$acl_m_act}{PREPEND}}
 739
 740   # Write log message, if policyd-weight can't run checks
 741   warn  !hosts         = +debianhosts
 742         condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 743         log_message    = policyd-weight message: $acl_m_mes
 744         condition      = ${if eq{$acl_m_act}{DUNNO}}
 745
 746   # Deny mails which policyd-weight thinks are spam
 747   deny  !hosts         = +debianhosts
 748         condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 749         message        = policyd-weight said: $acl_m_mes
 750         condition      = ${if eq{$acl_m_act}{550}}
 751
 752   # Defer messages when policyd-weight suggests so.
 753   defer  !hosts         = +debianhosts
 754          condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 755          message        = policyd-weight said: $acl_m_mes
 756          condition      = ${if eq{$acl_m_act}{450}}
 757
 758 <%- end -%>
 759 <%- if @is_rtmaster -%>
 760   warn    condition     = ${if eq{$acl_m_prf}{RTMail}}
 761           set acl_m12   = ${if def:acl_m12 {$acl_m12} {${if or{{match{$local_part}{\N[^+]+\+\d+\N}}{match{$local_part}{\N[^+]+\+new\N}}{match{$local_part}{3520}}{match{$local_part}{3645}}} {RTMailRecipientHasSubaddress}}}}
 762   # temporary hack because weasel screwed up and gave people an rt-3520@ address, which doesn't really work normally.  and rt-3645
 763   #set acl_m12  = ${if def:acl_m12 {$acl_m12} {${if or{{match{$local_part}{\N[^+]+\+\d+\N}}{match{$local_part}{\N[^+]+\+new\N}}} {RTMailRecipientHasSubaddress}}}}
 764
 765
 766 <%- end -%>
 767 <%- if has_variable?("greylistd") && @greylistd -%>
 768   defer
 769     message  = $sender_host_address is not yet authorized to deliver mail from <$sender_address> to <$local_part@$domain>.
 770     log_message = greylisted.
 771     local_parts    = ${if match_domain{$domain}{+virtual_domains}\
 772                      {${if exists {${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}\
 773                      {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}{$local_part}{}}}{}}}\
 774                      {${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}} : \
 775                      ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}}}}
 776     !senders       = :
 777     !hosts         = : +debianhosts : WHITELIST : \
 778                      ${if exists {/etc/greylistd/whitelist-hosts}\
 779                                  {/etc/greylistd/whitelist-hosts}{}} : \
 780                      ${if exists {/var/lib/greylistd/whitelist-hosts}\
 781                                  {/var/lib/greylistd/whitelist-hosts}{}}
 782     condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 783     !authenticated = *
 784     domains        = +handled_domains
 785     condition      = ${readsocket{/var/run/greylistd/socket}\
 786                                  {--grey \
 787                                   $sender_host_address \
 788                                   $sender_address \
 789                                   $local_part@$domain}\
 790                                  {5s}{}{false}}
 791
 792 <%- elsif has_variable?("postgrey") && @postgrey -%>
 793   # next three are greylisting, inspired by http://www.bebt.de/blog/debian/archives/2006/07/30/T06_12_27/index.html
 794   # this adds acl_m_grey if there isn't one (so unique per message)
 795   warn
 796     !senders       = :
 797     !hosts         = : +debianhosts : WHITELIST
 798     condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 799     condition      = ${if ! def:acl_m_grey}
 800     set acl_m_grey = $pid.$tod_epoch.$sender_host_port
 801
 802   # and defers the message if postgrey thinks it should be defered ...
 803   defer
 804     !senders       = :
 805     !hosts         = : +debianhosts : WHITELIST
 806     condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 807     !authenticated = *
 808     domains        = +handled_domains
 809     local_parts    = GREYLIST_LOCAL_PARTS
 810     set acl_m_pgr  = request=smtpd_access_policy\n\
 811                      protocol_state=RCPT\n\
 812                      protocol_name=${uc:$received_protocol}\n\
 813                      instance=${acl_m_grey}\n\
 814                      helo_name=${sender_helo_name}\n\
 815                      client_address=${sender_host_address}\n\
 816                      client_name=${sender_host_name}\n\
 817                      sender=${sender_address}\n\
 818                      recipient=$local_part@$domain\n\n
 819     set acl_m_pgr  = ${sg{\
 820                          ${readsocket{/var/run/postgrey/socket}{$acl_m_pgr}\
 821                                {5s}{}{action=DUNNO}}\
 822                      }{action=}{}}
 823     message        = ${sg{$acl_m_pgr}{\N^\w+\s*\N}{}}
 824     log_message    = greylisted.
 825     condition      = ${if eq{${uc:${substr{0}{5}{$acl_m_pgr}}}}{DEFER}}
 826
 827  # ... or adds a header with information about how long the delay was
 828  warn
 829     !senders       = :
 830     !hosts         = : +debianhosts : WHITELIST
 831     condition      = ${if !eq {$acl_m_prf}{PopconMail}}
 832     !authenticated = *
 833     domains        = +handled_domains
 834     local_parts    = GREYLIST_LOCAL_PARTS
 835     condition      = ${if eq{${uc:${substr_0_7:$acl_m_pgr}}}{PREPEND}}
 836     message        = ${sg{$acl_m_pgr}{\N^\w+\s*\N}{}}
 837
 838 <%- end -%>
 839   deny    hosts        = ${if exists{/etc/exim4/host_blacklist}{/etc/exim4/host_blacklist}{}}
 840           message      = I'm terribly sorry, but it seems you have been blacklisted
 841           log_message  = blacklisted IP
 842
 843   deny   log_message   = <$sender_address> is blacklisted
 844          senders       = ${if exists{/etc/exim4/blacklist}{/etc/exim4/blacklist}{}}
 845          message       = We have blacklisted <$sender_address>.  Please stop mailing us
 846
 847   accept  local_parts   = +postmasterish
 848           domains       = +virtual_domains : +bsmtp_domains
 849
 850 <%- unless @use_smarthost -%>
 851   deny    message  = host $sender_host_address is listed in $dnslist_domain; see $dnslist_text
 852           dnslists = ${if match_domain{$domain}{+virtual_domains}\
 853                      {${if exists {${extract{directory}{VDOMAINDATA}{${value}/rbllist}}}\
 854                      {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/rbllist}}}{$value}{}}}{}}}\
 855                      {${lookup{$local_part}lsearch{/etc/exim4/rbllist}{$value}{}}}} : \
 856                      ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-rbl}{$value}{}}
 857           domains       = +handled_domains
 858           !hosts        = +debianhosts : WHITELIST
 859
 860 <%- end -%>
 861   deny    message  = domain $sender_address_domain is listed in $dnslist_domain; see $dnslist_text
 862           dnslists = ${if match_domain{$domain}{+virtual_domains}\
 863                      {${if exists {${extract{directory}{VDOMAINDATA}{${value}/rhsbllist}}}\
 864                      {${expand:${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/rhsbllist}}}{$value}{}}}}{}}}\
 865                      {${expand:${lookup{$local_part}lsearch{/etc/exim4/rhsbllist}{$value}{}}}}} : \
 866                      ${expand:${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-rhsbl}{$value}{}}}
 867           domains       = +handled_domains
 868           !hosts        = +debianhosts : WHITELIST
 869
 870 <%- unless @use_smarthost -%>
 871   deny    domains  = +handled_domains
 872           local_parts = ${if match_domain{$domain}{+virtual_domains}\
 873                         {${if exists {${extract{directory}{VDOMAINDATA}{${value}/callout_users}}}\
 874                         {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/callout_users}}}{$local_part}{}}}{}}}\
 875                         {${lookup{$local_part}lsearch{/etc/exim4/callout_users}{$local_part}{}}}} : \
 876                         ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-callout}{$local_part}{}}
 877           !hosts   = +debianhosts : WHITELIST
 878           !verify  = sender/callout=90s,maxwait=300s
 879           message  = "Sender verification failed: $acl_verify_message"
 880
 881 <%- end -%>
 882 <%- if @is_mailrelay -%>
 883   accept  domains  = +mailhubdomains
 884           endpass
 885           verify   = recipient/callout=30s,defer_ok,use_sender,no_cache
 886
 887 <%- end -%>
 888   accept  domains  = +handled_domains
 889           endpass
 890           verify   = recipient/defer_ok
 891
 892   accept  hosts         = +debianhosts
 893
 894   accept  authenticated = *
 895
 896   deny    message = relay not permitted
 897
 898 <%- if @heavy -%>
 899 acl_check_mime:
 900
 901  accept  verify        = certificate
 902  accept  hosts         = +debianhosts
 903
 904  discard condition     = ${if <{$message_size}{MAX_SCAN_SIZE}}
 905          condition     = ${if eq {$acl_m_prf}{blackhole}}
 906          set acl_m_srb = ${perl{surblspamcheck}}
 907          condition     = ${if !eq{$acl_m_srb}{false}}
 908          log_message   = discarded surbl message for $recipients
 909
 910   deny   condition     = ${if <{$message_size}{MAX_SCAN_SIZE}}
 911          condition     = ${if !eq {$acl_m_prf}{markup}}
 912          condition     = ${if !eq {$acl_m_prf}{PopconMail}}
 913          set acl_m_srb = ${perl{surblspamcheck}}
 914          condition     = ${if !eq{$acl_m_srb}{false}}
 915          log_message   = $acl_m_srb
 916          message       = $acl_m_srb
 917
 918   warn   condition     = ${if <{$message_size}{MAX_SCAN_SIZE}}
 919          condition     = ${if eq {$acl_m_prf}{markup}}
 920          set acl_m_srb = ${perl{surblspamcheck}}
 921          condition     = ${if !eq{$acl_m_srb}{false}}
 922          message       = X-Surbl-Hit: $primary_hostname: $acl_m_srb
 923
 924   accept
 925
 926 <%- end -%>
 927 acl_check_predata:
 928   deny   condition     = ${if eq{$acl_m_prf}{localonly}}
 929          message       = mail for $acl_m_lrc is only accepted internally
 930
 931   accept
 932
 933
 934 #!!# ACL that is used after the DATA command
 935 check_message:
 936
 937   # Some people put from postmaster@something.debian.org in the From
 938   # header.  Take their crack pipe away.
 939   drop   condition = ${if match{${lc:$h_From:}}{\Npostmaster@([^.]+\.)?debian\.org\N}}
 940
 941 <%- if @is_rtmaster -%>
 942   deny    condition = ${if eq {$acl_m_prf}{RTMail}}
 943           condition = ${if and{{!match {${lc:$rh_Subject:}} {debian rt}} \
 944                                {!match {${lc:$rh_Subject:]}} {\N\[rt.debian.org \N}} \
 945                                {!match {$acl_m12}{RTMailRecipientHasSubaddress}}}}
 946           message  = messages to the Request Tracker system require a subject tag or a subaddress
 947
 948 <%- end -%>
 949 <%- if @is_packagesqamaster -%>
 950   deny    !hosts  = +debianhosts
 951           condition = ${if eq {$acl_m_prf}{PTSMail}}
 952           condition = ${if !def:h_X-PTS-Approved:}
 953           message   = messages to the PTS require an X-PTS-Approved header
 954
 955 <%- end -%>
 956   deny    condition      = ${if eq {$acl_m_prf}{DBSignedMail}}
 957           condition      = ${if and {{!match {$message_body}{PGP MESSAGE}}              \
 958                                      {!match {$message_body}{PGP SIGNED MESSAGE}}       \
 959                                      {!match {$message_body}{PGP SIGNATURE}}            \
 960                                      {!match {$header_content-type:}{multipart/signed}} \
 961                                      {!match {$header_content-type:}{pgp}}              \
 962                                     }                                                   \
 963                             }
 964           message        = Mail to this address needs to be PGP-signed
 965
 966   accept  verify    = certificate
 967   accept  hosts     = +debianhosts
 968
 969   deny    condition = ${if !eq {$acl_m_prf}{PopconMail}}
 970           !verify   = header_syntax
 971           message   = Invalid header syntax: $acl_verify_message
 972
 973 # RFC 822 and 2822 say that headers must be ASCII.  This kinda emulates
 974 # postfix's strict_7bit_headers option, but only checks a few common problem
 975 # headers, as there doesn't appear to be an easy way to check them all.
 976   deny
 977           condition       = ${if or {{match {$rh_Subject:}{[\200-\377]}}\
 978                                  {match {$rh_To:}{[\200-\377]}}\
 979                                  {match {$rh_From:}{[\200-\377]}}\
 980                                  {match {$rh_Cc:}{[\200-\377]}}}}
 981           condition       = ${if !eq {$acl_m_prf}{PopconMail}}
 982           message         = improper use of 8-bit data in message header: message rejected
 983
 984   deny
 985           condition       = ${if match {$rh_Subject:}{[^[:print:]]\{8\}}}
 986           condition       = ${if !eq {$acl_m_prf}{PopconMail}}
 987           message         = Your mailer is not RFC 2047 compliant: message rejected
 988
 989 <%- if has_variable?("clamd") && @clamd -%>
 990   discard condition       = ${if eq {$acl_m_prf}{blackhole}}
 991           malware         = */defer_ok
 992           log_message     = discarded malware message for $recipients
 993
 994   deny    condition       = ${if !eq {$acl_m_prf}{markup}}
 995           condition       = ${if !eq {$acl_m_prf}{PopconMail}}
 996           malware         = */defer_ok
 997           message         = malware detected: $malware_name: message rejected
 998
 999   warn    condition       = ${if eq {$acl_m_prf}{markup}}
1000           malware         = */defer_ok
1001           message         = X-malware detected: $malware_name
1002
1003 <%- end -%>
1004 <%- if @heavy -%>
1005  discard condition     = ${if <{$message_size}{MAX_SCAN_SIZE}}
1006          condition     = ${if eq {$acl_m_prf}{blackhole}}
1007          set acl_m_srb = ${perl{surblspamcheck}}
1008          condition     = ${if !eq{$acl_m_srb}{false}}
1009          log_message   = discarded surbl message for $recipients
1010
1011   deny   condition     = ${if <{$message_size}{MAX_SCAN_SIZE}}
1012          condition     = ${if !eq {$acl_m_prf}{markup}}
1013          condition     = ${if !eq {$acl_m_prf}{PopconMail}}
1014          set acl_m_srb = ${perl{surblspamcheck}}
1015          condition     = ${if !eq{$acl_m_srb}{false}}
1016          log_message   = $acl_m_srb
1017          message       = $acl_m_srb
1018
1019   warn   condition     = ${if <{$message_size}{MAX_SCAN_SIZE}}
1020          condition     = ${if eq {$acl_m_prf}{markup}}
1021          set acl_m_srb = ${perl{surblspamcheck}}
1022          condition     = ${if !eq{$acl_m_srb}{false}}
1023          message       = X-Surbl-Hit: $primary_hostname: $acl_m_srb
1024
1025 <%- end -%>
1026   # Check header_sender except for survey@popcon.d.o
1027   deny    condition    = ${if !eq{$acl_m_prf}{PopconMail}}
1028           !verify      = header_sender
1029           message      = No valid sender found in the From:, Sender: and Reply-to: headers
1030
1031 <%- if @is_packagesmaster -%>
1032   deny  message        = Congratulations, you scored $spam_score points.
1033         log_message    = spam: $spam_score points.
1034         condition      = ${if eq {$acl_m_prf}{PackagesMail}}
1035         !authenticated = *
1036         !verify        = certificate
1037         !hosts         = +debianhosts
1038         condition      = ${if <{$message_size}{MAX_SCAN_SIZE}}
1039         spam           = pkg_user : true
1040         condition      = ${if >{$spam_score_int}{59}}
1041
1042 <%- end -%>
1043   accept
1044
1045
1046
1047 ######################################################################
1048 #                      REWRITE CONFIGURATION                         #
1049 ######################################################################
1050
1051
1052
1053 begin rewrite
1054
1055 \N^buildd_(.*)@fasolo\.debian\.org$\N buildd_$1@buildd.debian.org T
1056 *@debian.org ${lookup{$1}cdb{/var/lib/misc/${primary_hostname}/mail-forward.cdb}{$value}fail} T
1057 *@people.debian.org ${lookup{$1}cdb{/var/lib/misc/${primary_hostname}/mail-forward.cdb}{$value}fail} T
1058 #*@${primary_hostname} "${if exists{/etc/exim4/email-addresses}{${lookup{$1}lsearch{/etc/exim4/email-addresses}{$value}fail}}fail}" fFs
1059
1060
1061 #!!#######################################################!!#
1062 #!!# Here follow routers created from the old routers,   #!!#
1063 #!!# for handling non-local domains.                     #!!#
1064 #!!#######################################################!!#
1065
1066 begin routers
1067
1068
1069
1070 ######################################################################
1071 #                      ROUTERS CONFIGURATION                         #
1072 #                Specifies how addresses are handled                 #
1073 ######################################################################
1074 #                          ORDER DOES MATTER                         #
1075 #     An address is passed to each in turn until it is accepted.     #
1076 ######################################################################
1077
1078 <%- if @is_mailrelay -%>
1079 relay_manualroute:
1080   debug_print = "R: relay_manualroute for $local_part@$domain"
1081   driver = manualroute
1082   domains = +mailhubdomains
1083   transport = ${if forany{${lookup dnsdb{>: mxh=$domain}}}\
1084                   {match_domain{$item}{+single_domain_mx}}\
1085                   {remote_smtp_single_domain}{remote_smtp}\
1086                }
1087   route_data = ${lookup{$domain}lsearch{/etc/exim4/manualroute}}
1088   require_files = /etc/exim4/manualroute
1089
1090 <%- end -%>
1091 bsmtp:
1092   debug_print = "R: bsmtp for $local_part@$domain"
1093   driver = manualroute
1094   domains = +bsmtp_domains
1095   require_files = /etc/exim4/bsmtp
1096   route_list = * ${extract{file}{\
1097                    ${lookup{$domain}partial-lsearch{/etc/exim4/bsmtp}\
1098                      {$value}fail}}}
1099   transport = bsmtp
1100
1101 # This router routes to remote hosts over SMTP by explicit IP address,
1102 # given as a "domain literal" in the form [nnn.nnn.nnn.nnn]. The RFCs
1103 # require this facility, which is why it is enabled by default in Exim.
1104 ipliteral:
1105   debug_print = "R: ipliteral for $local_part@$domain"
1106   driver = ipliteral
1107   domains = !+handled_domains
1108   transport = remote_smtp
1109   ignore_target_hosts = +reservedaddrs
1110
1111 <%- if @use_smarthost -%>
1112 smarthost:
1113   debug_print = "R: smarthost for $local_part@$domain"
1114   driver = manualroute
1115   domains = !+handled_domains
1116   transport = remote_smtp_smarthost
1117   route_list = * <%= @smarthost %>
1118   host_find_failed = defer
1119   same_domain_copy_routing = yes
1120   no_more
1121 <%- end -%>
1122
1123 # This router routes to remote hosts over SMTP using a DNS lookup.
1124 # Ignore reserved network responses, including localhost.
1125 dnslookup:
1126   debug_print = "R: dnslookup for $local_part@$domain"
1127   driver = dnslookup
1128   domains = !+handled_domains
1129   transport = ${if forany{${lookup dnsdb{>: mxh=$domain}}}\
1130                   {match_domain{$item}{+single_domain_mx}}\
1131                   {remote_smtp_single_domain}{remote_smtp}\
1132                }
1133   ignore_target_hosts = +reservedaddrs : \
1134                ${if forany{${lookup dnsdb{>: mxh=$domain}}}\
1135                   {match_domain{$item}{+ipv4_only_domain_mx}}\
1136                   {::::/0}{}\
1137                }
1138   no_more
1139
1140 postmasterish:
1141   debug_print = "R: postmasterish for $local_part@$domain"
1142   driver = redirect
1143   verify = false
1144   unseen = true
1145   expn = true
1146   local_parts = +postmasterish
1147   domains = +virtual_domains : +bsmtp_domains
1148   data = debian-admin@debian.org
1149   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1150
1151 # This router handles aliasing using a traditional /etc/aliases file.
1152 # If any of your aliases expand to pipes or files, you will need to set
1153 # up a user and a group for these deliveries to run under. You can do
1154 # this by uncommenting the "user" option below (changing the user name
1155 # as appropriate) and adding a "group" option if necessary.
1156
1157 system_aliases:
1158   debug_print = "R: system_aliases for $local_part@$domain"
1159   driver = redirect
1160   allow_defer
1161   allow_fail
1162   data = ${lookup{$local_part}lsearch*{/etc/aliases}}
1163   domains = +local_domains
1164   file_transport = address_file
1165   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1166   pipe_transport = address_pipe
1167   retry_use_local_part
1168
1169 # This router handles forwarding using traditional .forward files.
1170 # It also allows mail filtering when a forward file starts with the
1171 # string "# Exim filter": to disable filtering, uncomment the "filter"
1172 # option. The check_ancestor option means that if the forward file
1173 # generates an address that is an ancestor of the current one, the
1174 # current one gets passed on instead. This covers the case where A is
1175 # aliased to B and B has a .forward file pointing to A.
1176
1177 # For standard Debian setup of one group per user, it is acceptable---normal
1178 # even---for .forward to be group writable. If you have everyone in one
1179 # group, you should comment out the "modemask" line. Without it, the Exim
1180 # default of 022 will apply, which is probably what you want.
1181
1182 userforward_verify:
1183   debug_print = "R: userforward for $local_part${local_part_suffix}@$domain"
1184   driver = redirect
1185   check_ancestor
1186   user = Debian-exim
1187   no_check_local_user
1188   directory_transport = address_directory
1189   domains = +local_domains
1190   # filter - I have disabled filtering to force users to use .forward-foo files
1191   # or procmail. This will make it easier to move mailers in the future
1192   #
1193   # This bit does the qmailesque extension names, foo-bar@ is .forward-foo it
1194   # also checks if the .forward-bar exists, if not then it uses
1195   # .forward-default instead.
1196   file = $home/.forward\
1197          ${if eq{}{$local_part_suffix}{}{\
1198            ${if exists {${home}/.forward${local_part_suffix}} \
1199              {${local_part_suffix}}{-default}}\
1200            }\
1201           }
1202   file_transport = address_file
1203   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1204   local_part_suffix = -*
1205   local_part_suffix_optional
1206   modemask = 002
1207   pipe_transport = address_pipe
1208   reply_transport = address_reply
1209   require_files = $home
1210   router_home_directory = ${lookup passwd{$local_part}{${extract{5}{:}{$value}}}fail}
1211   verify_only
1212
1213 # This is a sendmailesque alias file lookup
1214 virt_aliases:
1215   debug_print = "R: virt_aliases for $local_part@$domain"
1216   driver = redirect
1217   allow_defer
1218   allow_fail
1219   data = ${if exists{\
1220            ${extract{directory}{VDOMAINDATA}{${value}/aliases}}}\
1221            {${lookup{$local_part}lsearch*{\
1222               ${extract{directory}{VDOMAINDATA}{$value/aliases}}\
1223            }}}}
1224   directory_transport = address_directory
1225   domains = +virtual_domains
1226   file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}}
1227   cannot_route_message = Unknown user
1228   group = ${extract{group}{VDOMAINDATA}}
1229   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1230   pipe_transport = address_pipe
1231   qualify_preserve_domain
1232   retry_use_local_part
1233   transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1234   transport_home_directory = ${extract{directory}{VDOMAINDATA}}
1235   user = ${extract{user}{VDOMAINDATA}}
1236
1237 # No direct match, so try doing a regex match if there's an
1238 # aliases.regex
1239 virt_aliases_regex:
1240   debug_print = "R: virt_aliases_regex for $local_part$local_part_suffix@$domain"
1241   driver = redirect
1242   allow_defer
1243   allow_fail
1244   data = ${if exists{\
1245            ${extract{directory}{VDOMAINDATA}{${value}/aliases.regex}}}\
1246            {${lookup{$local_part}nwildlsearch*{\
1247               ${extract{directory}{VDOMAINDATA}{$value/aliases.regex}}\
1248            }}}}
1249   directory_transport = address_directory
1250   domains = +virtual_domains
1251   file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}}
1252   cannot_route_message = Unknown user
1253   group = ${extract{group}{VDOMAINDATA}}
1254   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1255   pipe_transport = address_pipe
1256   qualify_preserve_domain
1257   retry_use_local_part
1258   transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1259   transport_home_directory = ${extract{directory}{VDOMAINDATA}}
1260   user = ${extract{user}{VDOMAINDATA}}
1261
1262 userforward:
1263   debug_print = "R: userforward for $local_part${local_part_suffix}@$domain"
1264   driver = redirect
1265   check_ancestor
1266   check_local_user
1267   directory_transport = address_directory
1268   domains = +local_domains
1269   # filter - I have disabled filtering to force users to use .forward-foo files
1270   # or procmail. This will make it easier to move mailers in the future
1271   #
1272   # This bit does the qmailesque extension names, foo-bar@ is .forward-foo it
1273   # also checks if the .forward-bar exists, if not then it uses
1274   # .forward-default instead.
1275   file = $home/.forward\
1276          ${if eq{}{$local_part_suffix}{}{\
1277            ${if exists {${home}/.forward${local_part_suffix}} \
1278              {${local_part_suffix}}{-default}}\
1279            }\
1280           }
1281   file_transport = address_file
1282   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1283   local_part_suffix = -*
1284   local_part_suffix_optional
1285   modemask = 002
1286   pipe_transport = address_pipe
1287   reply_transport = address_reply
1288   require_files = $home
1289   no_verify
1290
1291 # This delivers to procmail
1292 procmail:
1293   debug_print = "R: procmail for $local_part@$domain"
1294   driver = accept
1295   check_local_user
1296   domains = +local_domains
1297   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1298   local_part_suffix = -*
1299   local_part_suffix_optional
1300   no_verify
1301   no_expn
1302   require_files = $local_part:$home/.procmailrc
1303   transport = procmail_pipe
1304   transport_current_directory = $home
1305
1306 # This driver delivers to the LDAP generated alias file.
1307 ldap_aliases:
1308   debug_print = "R: ldap_aliases for $local_part@$domain"
1309   driver = redirect
1310   allow_defer
1311   allow_fail
1312   data = ${if exists{/var/lib/misc/$primary_hostname/user-forward.cdb}\
1313              {${lookup{$local_part}cdb\
1314                {/var/lib/misc/$primary_hostname/user-forward.cdb}}}}
1315   domains = +local_domains
1316   file_transport = address_file
1317   local_part_suffix = -*
1318   local_part_suffix_optional
1319   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1320   pipe_transport = address_pipe
1321   retry_use_local_part
1322
1323 # This director matches local user mailboxes.
1324 localuser:
1325   debug_print = "R: localuser for $local_part@$domain"
1326   driver = accept
1327   check_local_user
1328   domains = +local_domains
1329   local_part_suffix = -*
1330   local_part_suffix_optional
1331   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1332   # Disable if the user has never logged in
1333   require_files = $home
1334   transport = local_delivery
1335   no_more
1336
1337 # Now we begin the Virtual Domain configuration
1338 # Everything before here should apply only to the local domains with a
1339 # domains= rule
1340
1341 <%- if @is_packagesmaster -%>
1342 # This router delivers for packages.d.o
1343 packages:
1344   debug_print = "R: packages for $local_part@$domain"
1345   driver = redirect
1346   file_transport = address_file
1347   pipe_transport = address_pipe
1348   domains = packages.debian.org
1349   require_files = /srv/packages.debian.org/conf/maintainer
1350   data = ${lookup{$local_part}cdb{/srv/packages.debian.org/conf/maintainer.cdb}}
1351   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1352   transport_home_directory = /srv/packages.debian.org/mail
1353   transport_current_directory = /srv/packages.debian.org/mail
1354   check_ancestor
1355   retry_use_local_part
1356   no_more
1357
1358 <%- end -%>
1359 <%- if @is_rtmaster -%>
1360 # This router delivers for rt.d.o
1361 rt_force_new_verbose:
1362   debug_print = "R: rt for $local_part+new@$domain"
1363   driver = redirect
1364   domains = rt.debian.org
1365   require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP
1366   local_parts = ${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}}
1367   local_part_suffix = +new
1368   pipe_transport = rt_pipe
1369   data = "|/usr/bin/rt-mailgate --queue '${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}}' --url https://rt.debian.org/ --ca-file /etc/ssl/ca-debian/ca-certificates.crt --action ${if match{$local_part}{.*-comment.*}{comment}{correspond}}"
1370   headers_remove = Subject
1371   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nRT_SUBJECT"
1372
1373 # FIXME: figure out how to generalize this approach so that all of the following would work
1374 # - rt+NNNN@rt.debian.org          : attach correspondence to ticket (verbose)
1375 # - rt+NNNN-quiesce@rt.debian.org  : attach correspondence to ticket (quiesce)
1376 # - rt+NNNN-<action>@rt.debian.org : attach correspondence to ticket (some action)
1377 # requires modification to custom condition in 'scrips'
1378 rt_force_new_quiesce:
1379   debug_print = "R: rt for $local_part+new-quiesce@$domain"
1380   driver = redirect
1381   domains = rt.debian.org
1382   require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP
1383   local_parts = ${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}}
1384   local_part_suffix = +new-quiesce
1385   pipe_transport = rt_pipe
1386   data = "|/usr/bin/rt-mailgate --queue '${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}}' --url https://rt.debian.org/ --ca-file /etc/ssl/ca-debian/ca-certificates.crt --action ${if match{$local_part}{.*-comment.*}{comment}{correspond}}"
1387   headers_remove = Subject
1388   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nX-RT-Mode: quiesce\nRT_SUBJECT"
1389
1390 rt_otherwise:
1391   debug_print = "R: rt for $local_part@$domain"
1392   driver = redirect
1393   domains = rt.debian.org
1394   require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP
1395   local_parts = ${lookup{${sg{$local_part}{-(comment|done)}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}}
1396   local_part_suffix = +*
1397   local_part_suffix_optional
1398   pipe_transport = rt_pipe
1399   data = "|/usr/bin/rt-mailgate --queue '${lookup{${sg{$local_part}{-(comment|done)}{}}}lsearch{RT_QUEUE_MAP}}' --url https://rt.debian.org/ --ca-file /etc/ssl/ca-debian/ca-certificates.crt --extension ticket --action ${if match{$local_part}{.*-comment.*}{comment}{${if match{$local_part}{.*-done.*}{correspond-resolve}{correspond}}}}"
1400   headers_remove = Subject
1401   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nRT_SUBJECT"
1402 <%- end -%>
1403
1404 # Exim fails the router if it can't change to the user/group for delivery
1405 # during verification.  So we have to separate the cases of verifying
1406 # the virts, and delivering to them.  blah.
1407
1408 virt_direct_verify:
1409   debug_print = "R: virt_direct for $local_part@$domain"
1410   driver = redirect
1411   no_check_local_user
1412   user = Debian-exim
1413   allow_filter
1414   modemask = 002
1415   directory_transport = address_directory
1416   domains = +virtual_domains
1417   local_part_suffix = -*
1418   local_part_suffix_optional
1419   file = $home/.forward-\
1420               ${if exists {${home}/.forward-${local_part}}{${local_part}}\
1421                    {default}}
1422   file_transport = address_file
1423   pipe_transport = address_pipe
1424   reply_transport = address_reply
1425   retry_use_local_part
1426   router_home_directory = ${extract{directory}{VDOMAINDATA}}
1427   transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1428   verify_only
1429
1430 # This is a qmailesque deliver into a directory of .forward files
1431 virt_direct:
1432   debug_print = "R: virt_direct for $local_part@$domain"
1433   driver = redirect
1434   allow_filter
1435   allow_fail
1436   allow_defer
1437   no_check_local_user
1438   directory_transport = address_directory
1439   domains = +virtual_domains
1440   file = $home/.forward-\
1441               ${if exists {${home}/.forward-${local_part}}{${local_part}}\
1442                    {default}}
1443   file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}}
1444   group = ${extract{group}{VDOMAINDATA}}
1445   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1446   modemask = 002
1447   local_part_suffix = -*
1448   local_part_suffix_optional
1449   pipe_transport = address_pipe
1450   reply_transport = address_reply
1451   retry_use_local_part
1452   router_home_directory = ${extract{directory}{VDOMAINDATA}}
1453   transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1454   no_verify
1455   user = ${extract{user}{VDOMAINDATA}}
1456   #debug_print = .forward-${if exists {${home}/.forward-${local_part}} {${local_part}} {default}}
1457
1458 # This router delivers to the LDAP generated mail-forward file.
1459 # It's only really useful for debian.org
1460 virt_users:
1461   debug_print = "R: virt_users for $local_part@$domain"
1462   driver = redirect
1463   allow_defer
1464   allow_fail
1465   router_home_directory = ${extract{directory}{VDOMAINDATA}}
1466   transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1467   user = ${extract{user}{VDOMAINDATA}}
1468   group = ${extract{group}{VDOMAINDATA}}
1469   # Manually construct the forwarding address, preserving the
1470   # local_part_suffix if the remote host is master.
1471   data = ${if and {{exists{${extract{directory}{VDOMAINDATA}{${value}/mail-forward.cdb}}}}\
1472                      {! eq {${lookup{$local_part}cdb\
1473                             {${extract{directory}{VDOMAINDATA}{${value}/mail-forward.cdb}}}}}\
1474                            {}}}\
1475              {${local_part:${lookup{$local_part}cdb\
1476              {${extract{directory}{VDOMAINDATA}{${value}/mail-forward.cdb}}}}}\
1477              ${if eq {${domain:${lookup{$local_part}cdb\
1478              {${extract{directory}{VDOMAINDATA}{${value}/mail-forward.cdb}}}}}}{master.debian.org}{$local_part_suffix} {}}\
1479              @\
1480              ${domain:${lookup{$local_part}cdb\
1481             {${extract{directory}{VDOMAINDATA}{${value}/mail-forward.cdb}}}}}}}
1482   domains = +virtual_domains
1483   file_transport = address_file
1484   headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1485   pipe_transport = address_pipe
1486   local_part_suffix = -*
1487   local_part_suffix_optional
1488   retry_use_local_part
1489
1490 <%- if @is_bugsmx -%>
1491 # This router delivers for bugs.d.o
1492 bugs:
1493   debug_print = "R: bugs for $local_part@$domain"
1494   driver = accept
1495   transport = bugs_pipe
1496   domains = bugs.debian.org
1497   cannot_route_message = Unknown or archived bug
1498   require_files = /srv/bugs.debian.org/mail/run-procmail
1499   no_more
1500   local_parts = ${if match\
1501                   {$local_part}\
1502                   {\N^(\d+)(\d{2})(?:-(?:(?:submit|maintonly|quiet|forwarded|done|close|request|submitter)|(?:unsubscribe|ignore|help|(?:sub(?:scribe|help|yes|approve|reject))|unsubyes|bounce|probe|approve|reject|setlistyes|setlistsilentyes).*))?$\N}\
1503                {${if exists{/srv/bugs.debian.org/spool/db-h/$2/$1$2.summary}\
1504                {$local_part}fail}}fail}
1505 <%- end -%>
1506 ######################################################################
1507 #                      TRANSPORTS CONFIGURATION                      #
1508 ######################################################################
1509 #                       ORDER DOES NOT MATTER                        #
1510 #     Only one appropriate transport is called for each delivery.    #
1511 ######################################################################
1512
1513
1514 begin transports
1515
1516 # This transport is used for local delivery to user mailboxes. On Debian
1517 # systems group mail is used so we can write to the /var/mail
1518 # directory. (The alternative, which most other unixes use, is to deliver
1519 # as the user's own group, into a sticky-bitted directory)
1520 local_delivery:
1521   debug_print = "T: local_delivery for $local_part@$domain"
1522   driver = appendfile
1523   file = /var/mail/${local_part}
1524   group = mail
1525   mode = 0660
1526   no_mode_fail_narrower
1527   return_path_add
1528
1529 # This transport is used for handling pipe addresses generated by alias
1530 # or .forward files. It has a conventional name, since it is not actually
1531 # mentioned elsewhere in this configuration file. (A different name *can*
1532 # be specified via the "address_pipe_transport" option if you really want
1533 # to.) If the pipe generates any standard output, it is returned to the sender
1534 # of the message as a delivery error. Set return_fail_output instead if you
1535 # want this to happen only when the pipe fails to complete normally.
1536
1537 address_pipe:
1538   debug_print = "T: address_pipe for $local_part@$domain"
1539   driver = pipe
1540   current_directory = ${home}
1541   environment = "EXTENSION=${substr_1:${local_part_suffix}}:\
1542                  EXT=${substr_1:${local_part_suffix}}:\
1543                  LOCAL=${local_part}${local_part_suffix}:\
1544                  RECIPIENT=${local_part}${local_part_suffix}@${domain}"
1545   return_output
1546   return_path_add
1547
1548 # This transport is used for handling file addresses generated by alias
1549 # or .forward files. It has a conventional name, since it is not actually
1550 # mentioned elsewhere in this configuration file.
1551
1552 address_file:
1553   debug_print = "T: address_file for $local_part@$domain"
1554   driver = appendfile
1555   return_path_add
1556
1557 address_file_group:
1558   debug_print = "T: address_file_group for $local_part@$domain"
1559   driver = appendfile
1560   return_path_add
1561   mode = 0660
1562   directory_mode = 0770
1563   mode_fail_narrower = false
1564
1565 # This transport is used for handling file addresses generated by alias
1566 # or .forward files if the path ends in "/", which causes it to be treated
1567 # as a directory name rather than a file name. Each message is then delivered
1568 # to a unique file in the directory. If instead you want all such deliveries to
1569 # be in the "maildir" format that is used by some other mail software,
1570 # uncomment the final option below. If this is done, the directory specified
1571 # in the .forward or alias file is the base maildir directory.
1572 #
1573 # Should you want to be able to specify either maildir or non-maildir
1574 # directory-style deliveries, then you must set up yet another transport,
1575 # called address_directory2. This is used if the path ends in "//" so should
1576 # be the one used for maildir, as the double slash suggests another level
1577 # of directory. In the absence of address_directory2, paths ending in //
1578 # are passed to address_directory.
1579
1580 address_directory:
1581   debug_print = "T: address_directory for $local_part@$domain"
1582   driver = appendfile
1583   check_string =
1584   maildir_format
1585   message_prefix = ""
1586   message_suffix = ""
1587   return_path_add
1588
1589 # This transport is used for handling autoreplies generated by the filtering
1590 # option of the forwardfile director. It has a conventional name, since it
1591 # is not actually mentioned elsewhere in this configuration file.
1592 address_reply:
1593   debug_print = "T: address_reply for $local_part@$domain"
1594   driver = autoreply
1595
1596 # This transport is used for delivering messages over SMTP connections.
1597
1598 remote_smtp:
1599   debug_print = "T: remote_smtp for $local_part@$domain"
1600   driver = smtp
1601   connect_timeout = 15s
1602   delay_after_cutoff = false
1603   tls_certificate = /etc/exim4/ssl/thishost.crt
1604   tls_privatekey = /etc/exim4/ssl/thishost.key
1605
1606 remote_smtp_single_domain:
1607   debug_print = "T: remote_smtp_single_domain for $local_part@$domain"
1608   driver = smtp
1609   connect_timeout = 15s
1610   delay_after_cutoff = false
1611   no_multi_domain
1612   tls_certificate = /etc/exim4/ssl/thishost.crt
1613   tls_privatekey = /etc/exim4/ssl/thishost.key
1614
1615 <%- if @use_smarthost -%>
1616 remote_smtp_smarthost:
1617   debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1618   driver = smtp
1619   delay_after_cutoff = false
1620   port = <%= @smarthost_port %>
1621   tls_tempfail_tryclear = false
1622   hosts_require_tls = <%= @smarthost %>
1623   tls_certificate = /etc/exim4/ssl/thishost.crt
1624   tls_privatekey = /etc/exim4/ssl/thishost.key
1625 <%- end -%>
1626 # Send the message to procmail
1627 procmail_pipe:
1628   debug_print = "T: procmail_pipe for $local_part@$domain"
1629   driver = pipe
1630   command = /usr/bin/procmail -a ${substr_1:${local_part_suffix}}
1631   return_path_add
1632   user = ${local_part}
1633
1634 bsmtp:
1635   debug_print = "T: bsmtp for $local_part@$domain"
1636   driver = appendfile
1637   batch_max = 100
1638   file = ${host}
1639   message_prefix =
1640   message_suffix =
1641   use_bsmtp
1642   user = ${extract{user}{\
1643                    ${lookup{$domain}partial-lsearch{/etc/exim4/bsmtp}\
1644                      {$value}fail}\
1645                    }}
1646
1647 <%- if @is_bugsmx -%>
1648 bugs_pipe:
1649   debug_print = "T: bugs_pipe for $local_part@$domain"
1650   driver = pipe
1651   command = /srv/bugs.debian.org/mail/run-procmail
1652   environment = "EXTENSION=${substr_1:${local_part_suffix}}:\
1653                  EXT=${substr_1:${local_part_suffix}}:\
1654                  LOCAL=${local_part}${local_part_suffix}:\
1655                  RECIPIENT=${local_part}${local_part_suffix}@${domain}"
1656   return_path_add
1657   return_output
1658   user = debbugs
1659
1660 <%- end -%>
1661 <%- if @is_rtmaster -%>
1662 rt_pipe:
1663   debug_print = "T: rt_pipe for $local_part${local_part_suffix}@$domain"
1664   driver = pipe
1665   return_fail_output
1666   environment = EXTENSION=${substr_1:${local_part_suffix}}
1667   allow_commands = /usr/bin/rt-mailgate
1668
1669 <%- end -%>
1670
1671 ######################################################################
1672 #                      RETRY CONFIGURATION                           #
1673 ######################################################################
1674
1675 # Domain               Error       Retries
1676 # ------               -----       -------
1677
1678 begin retry
1679
1680 ## Note that retry rules specify when an address / host / mail should
1681 ## become eligible for retrying. They do not specify when the retry
1682 ## attempt will actually occur, as this is dependent on queue run
1683 ## frequency and timing.
1684
1685 # For mail to debian.org addresses, this rule starts with
1686 # retries every 10 minutes for 2 hours, then increasing retry intervals,
1687 # starting at 2 hours and increasing each time by a factor of 1.5, up to 16
1688 # hours, then retries every 8 hours until 14 days have passed since the first
1689 # failed delivery.
1690 debian.org             *           F,2h,10m; G,16h,2h,1.5; F,14d,8h
1691
1692 # Bounces should get retried every 10 minutes for up to 2 hours
1693 *                      * senders=: F,2h,10m
1694
1695 # Temporary errors at RCPT TO get retried at 5 minute intervals for
1696 # 2 hours, then 10 minute intervals for 4 hours, and finally at 15
1697 # minute intervals for 4 days. This assumes that the cause of the
1698 # error will get resolved quickly in most cases.
1699 *                      rcpt_4xx    F,2h,5m;  F,4h,10m; F,4d,15m
1700
1701 # For all remaining mails, addresses and hosts, this rule starts with
1702 # retries every 15 minutes for 2 hours, then increasing retry intervals,
1703 # starting at 2 hours and increasing each time by a factor of 1.5, up to 16
1704 # hours, then retries every 8 hours until 4 days have passed since the first
1705 # failed delivery.
1706 *                      *           F,2h,15m; G,16h,2h,1.5; F,4d,8h
1707
1708 # End of Exim 4 configuration