## ## THIS FILE IS UNDER PUPPET CONTROL. DON'T EDIT IT HERE. ## USE: git clone git+ssh://$USER@puppet.debian.org/srv/puppet.debian.org/git/dsa-puppet.git ## # This is the main exim4 configuration file based on the 28.08.05 version by # ametzler # The configuration file uses a set of rules to generate an # acceptable mail environment for debian.org machines. It deviates # considerably from what could be considered a standard Exim configuration. # This configuration file brings in the necessary information from # other databases stored in /etc/exim4/ and the files distributed by ud-ldap # This file is independent of the local host, it should not be changed # per machine. primary_hostname is used in all places that require per-host # settings. # The configuration files in /etc/exim4 are as follows: # locals - This is a list of domains that are considered local. A local # domain is essentially one for which deliveries to /var/mail # will be attempted. The users available for local delivery # come from /etc/passwd and /etc/aliases. Wildcards are not # permitted. # virtualdomains - This is a list of all virtual domains. A virtual domain # is much like a local domain, execpt that the delivery location # and allowed set of users is controlled by a virtual domain # alias file and not /etc/passwd. Wildcards are permitted # relayhosts - Hostnames that can send any arbitarily addressed mail to # us. This is primarily only useful for emergency 'queue # flushing' operations, but should be populated with a list # of trusted machines. Wildcards are not permitted # bsmtp_domains - Domains that we deliver locally via bsmtp # submission-domains - Domains for which mail will be accepted via the # submission port <%- if @is_mailrelay -%> # mailhubdomains - Domains for which we are the MX, but the mail is relayed # elsewhere. This is designed for use with small volume or # restricted machines that need to use a smarthost for mail # traffic. We will relay for them based on ssl cert validation # but we need to teach Exim how to route the mail to them. This is # that list. <%- end -%> # From /var/lib/misc / UD: # # mail-forward.cdb - aliases for @d.o # user-forward.cdb - aliases for @thishost.d.o # Exim's wildcard mechanism is a bit odd in that to say "any address in # debian.org including debian.org" you must use two patterns, # *.debian.org # debian.org # Also you can only place a * before a . and as the first char in a string. # Wildcards always match last so they may be used as a catchall. # Further details can be found in each of the files. # Useful Exim commands: # exim4 -qf - Try sending all messages right now, including frozen ones # exim4 -bt foo@blah - Write what Exim would do if it saw the address # Great for testing virtual domains and forward files # Special Features for users: # .forward-foo - is understood as an extension address for bar-foo@cow.com # .forward-default - is understood to be a catch all for bar-*@cow.com # .procmailrc - with no .forward file invokes procmail for delivery # automatically. # For virtual domains the first lookup is done against a linear text # database called 'aliases', then .forward files are consulted. Exim # filtering is available for these .forward files only. .forward-default # is the universal catch all for everything not handled. # Heuristic check (none bad enough to cause a hard reject, but in aggregate # will trigger things like rcpt to rate limiting or possibly a reject if # enough hits are triggered). # # value is stored in acl_c_scr ###################################################################### # MAIN CONFIGURATION SETTINGS # ###################################################################### <%- if @heavy -%> perl_startup = do '/etc/exim4/exim_surbl.pl' <%- end -%> # These options specify the Access Control Lists (ACLs) that # are used for incoming SMTP messages - after the RCPT and DATA # commands, respectively. acl_smtp_helo = check_helo acl_smtp_rcpt = ${if ={$interface_port}{587} {check_submission}{check_recipient}} acl_smtp_data = check_message <%- if @heavy -%> acl_smtp_mime = acl_check_mime <%- end -%> acl_smtp_predata = acl_check_predata # accept domain literal syntax in e-mail addresses. To actually make use of # this a router is also required allow_domain_literals = true # This setting defines a named domain list called # local_domains. It will be referenced # later on by the syntax "+local_domains". # Other domain and host lists may follow. # @ is the local FQDN, @[] matches the IP adress of any local interface. domainlist local_domains = @ : \ @[] : \ localhost : \ ${if exists {/etc/exim4/locals}{lsearch;/etc/exim4/locals}} domainlist virtual_domains = partial-lsearch;/etc/exim4/virtualdomains domainlist submission_domains = ${if exists {/etc/exim4/submission-domains}{/etc/exim4/submission-domains}{}} domainlist bsmtp_domains = ${if exists {/etc/exim4/bsmtp}{partial-lsearch;/etc/exim4/bsmtp}{}} domainlist handled_domains = +local_domains : +virtual_domains : +bsmtp_domains domainlist ourself_and_handled = $primary_hostname : +handled_domains localpartlist local_only_users = lsearch;/etc/exim4/localusers localpartlist postmasterish = postmaster : abuse : hostmaster hostlist debianhosts = <; ; 127.0.0.1 ; ::1 ; /var/lib/misc/thishost/debianhosts 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 domainlist google_mxen = aspmx.l.google.com : gmail-smtp-in.l.google.com domainlist single_domain_mx = +google_mxen <%- if @is_mailrelay -%> # Domains we relay for; that is domains that aren't considered local but we # accept mail for them. domainlist mailhubdomains = lsearch;/etc/exim4/manualroute <%- end -%> tls_certificate = /etc/exim4/ssl/thishost.crt tls_privatekey = /etc/exim4/ssl/thishost.key tls_try_verify_hosts = * tls_verify_certificates = /etc/exim4/ssl/ca.crt tls_crl = /etc/exim4/ssl/ca.crl # The setting below causes Exim to do a reverse DNS lookup on all incoming # IP calls, in order to get the true host name. If you feel this is too # expensive, you can specify the networks for which a lookup is done, or # remove the setting entirely. host_lookup = * # dns_ipv4_lookup = !localhost (disabled upon sgrans request, zobel, 2010-03-16) # If this option is set, then any process that is running as one of the # listed users may pass a message to Exim and specify the sender's # address using the "-f" command line option, without Exim's adding a # "Sender" header. untrusted_set_sender = * # Some spam scanners (*cough* irritated *cough*) want the Sender field # to exist. Appease them by not actually adding a Sender field. local_from_check = false # Some operating systems use the "gecos" field in the system password file # to hold other information in addition to users' real names. Exim looks up # this field when it is creating "sender" and "from" headers. If these options # are set, Exim uses "gecos_pattern" to parse the gecos field, and then # expands "gecos_name" as the user's name. $1 etc refer to sub-fields matched # by the pattern. gecos_pattern = ^([^,:]*) gecos_name = $1 # Do *not* include the body of the original message in a bounce # The combinaton of bounce_return_message and bounce_return_body # allows us to return only the headers within a bounce bounce_return_message = true bounce_return_body = false # This tells Exim to immediately discard error messages (ie double bounces). ignore_bounce_errors_after = 0s auto_thaw = 1d timeout_frozen_after=14d message_size_limit = 100M message_logs = false smtp_accept_max_per_host = ${if match_ip {$sender_host_address}{+debianhosts}{0}{7}} <%- if @heavy -%> smtp_accept_max = 300 smtp_accept_queue = 200 smtp_accept_queue_per_connection = 50 smtp_accept_reserve = 25 <%- else -%> smtp_accept_max = 30 smtp_accept_queue = 20 smtp_accept_queue_per_connection = 10 smtp_accept_reserve = 5 <%- end -%> smtp_reserve_hosts = +debianhosts split_spool_directory = true check_spool_inodes = 200 check_spool_space = 20M delay_warning = <%- if @heavy -%> message_body_visible = 5000 queue_run_max = 50 deliver_queue_load_max = 50 queue_only_load = 35 smtp_load_reserve = 20 <%- else -%> queue_run_max = 5 <%- if scope.lookupvar('::processorcount').to_s != 'undefined' -%> deliver_queue_load_max = <%= [scope.lookupvar('::processorcount').to_i,2].max * 5 %> queue_only_load = <%= [scope.lookupvar('::processorcount').to_i,2].max * 4 %> <%- else -%> deliver_queue_load_max = 10 queue_only_load = 8 <%- end -%> <%- end -%> queue_list_requires_admin = false <%- if has_variable?("clamd") && @clamd -%> av_scanner = clamd:/var/run/clamav/clamd.ctl <%- end -%> <%= ports = [] out = "daemon_smtp_ports = " ports << 25 if @mail_port # if we have an overridden mail_port ports << @mail_port end if @is_bugsmx ports << 587 end if @is_mailrelay ports << @smarthost_port end out += ports.uniq.sort.join(" : ") out %> admin_groups = adm remote_sort_domains = *.debian.org:*.debian.net pipelining_advertise_hosts = !* tls_advertise_hosts = * smtp_enforce_sync = true log_selector = +tls_cipher +tls_peerdn +queue_time +deliver_time +smtp_connection +smtp_incomplete_transaction +smtp_confirmation +smtp_protocol_error received_header_text = Received: ${if def:sender_rcvhost {from $sender_rcvhost\n\t}\ {${if def:sender_ident {from ${quote_local_part:$sender_ident} }}${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}\ ${if and {{eq {$tls_certificate_verified}{1}}{def:tls_peerdn}}{from $tls_peerdn (verified)\n\t}}\ by $primary_hostname ${if def:received_protocol {with $received_protocol}} ${if def:tls_cipher {($tls_cipher)\n\t}}\ (Exim $version_number)\n\t\ ${if def:sender_address {(envelope-from <$sender_address>)\n\t}}\ id $message_exim_id${if def:received_for {\n\tfor $received_for}} # macro definitions. # Do not wrap! MAX_SCAN_SIZE = 256000 VDOMAINDATA = ${lookup{$domain}partial-lsearch{/etc/exim4/virtualdomains}{$value}} VSENDERDOMAINDATA = ${lookup{$sender_address_domain}partial-lsearch{/etc/exim4/virtualdomains}{$value}} WHITELIST = ${if match_domain{$domain}{+virtual_domains}\ {${if exists {${extract{directory}{VDOMAINDATA}{${value}/whitelist}}}\ {${lookup{$local_part}lsearch{${extract{directory}{VDOMAINDATA}{${value}/whitelist}}}{$value}{}}}{}}}\ {/etc/exim4/whitelist} } : \ ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-whitelist}{$value}{}} GREYLIST_LOCAL_PARTS = ${if match_domain{$domain}{+virtual_domains}\ {${if exists {${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}\ {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}{$local_part}{}}}{}}}\ {${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}}}} : \ ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}} <%- if @is_rtmaster -%> RT_QUEUE_MAP = /srv/rt.debian.org/mail/rt_queue_map <%- end -%> keep_environment = add_environment = ###################################################################### # ACL CONFIGURATION # ###################################################################### begin acl acl_spamlovers: # There are a few profiles that don't want much smtp time checking of # mail. It's easier to track them in one place accept condition = ${if eq {$acl_m_prf}{PopconMail}} accept condition = ${if eq {$acl_m_prf}{BugsMail}} deny acl_getprofile: # Determine the mail profile for this recipient. # An empty string implies no match has been found. warn set acl_m_rprf = warn recipients = survey@popcon.debian.org set acl_m_rprf = PopconMail accept condition = ${if !eq {$acl_m_rprf}{}} warn local_parts = +local_only_users domains = +local_domains hosts = !+debianhosts set acl_m_rprf = localonly <%- if @is_mailrelay -%> warn local_parts = +local_only_users domains = +mailhubdomains hosts = !+debianhosts set acl_m_rprf = localonly <%- end -%> accept condition = ${if !eq {$acl_m_rprf}{}} <%- if @is_rtmaster -%> warn domains = rt.debian.org set acl_m_rprf = RTMail accept condition = ${if !eq {$acl_m_rprf}{}} <%- end -%> <%- if @is_bugsmx -%> warn domains = bugs.debian.org set acl_m_rprf = BugsMail accept condition = ${if !eq {$acl_m_rprf}{}} <%- end -%> <%- if @is_packagesmaster -%> warn domains = packages.debian.org set acl_m_rprf = PackagesMail accept condition = ${if !eq {$acl_m_rprf}{}} <%- end -%> <%- if @is_packagesqamaster -%> warn recipients = owner@packages.qa.debian.org : postmaster@packages.qa.debian.org set acl_m_rprf = PTSOwner accept condition = ${if !eq {$acl_m_rprf}{}} warn senders = : domains = packages.qa.debian.org condition = ${if match{$local_part}{\N^bounces+\N}} set acl_m_rprf = PTSListBounce accept condition = ${if !eq {$acl_m_rprf}{}} warn domains = packages.qa.debian.org set acl_m_rprf = PTSMail accept condition = ${if !eq {$acl_m_rprf}{}} <%- end -%> warn recipients = change@db.debian.org : changes@db.debian.org : chpasswd@db.debian.org : ping@db.debian.org : recommend@nm.debian.org set acl_m_rprf = DBSignedMail accept condition = ${if !eq {$acl_m_rprf}{}} warn domains = +virtual_domains condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction}}}} condition = ${if eq{${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction}}}{$value}{}}}{markup}} set acl_m_rprf = markup accept condition = ${if !eq {$acl_m_rprf}{}} warn domains = +virtual_domains condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction}}}} condition = ${if eq{${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction}}}{$value}{}}}{blackhole}} set acl_m_rprf = blackhole accept condition = ${if !eq {$acl_m_rprf}{}} warn domains = +virtual_domains condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction.cdb}}}} condition = ${if eq{${lookup{$local_part}cdb{${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction.cdb}}}{$value}{}}}{markup}} set acl_m_rprf = markup accept condition = ${if !eq {$acl_m_rprf}{}} warn domains = +virtual_domains condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction.cdb}}}} condition = ${if eq{${lookup{$local_part}cdb{${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction.cdb}}}{$value}{}}}{blackhole}} set acl_m_rprf = blackhole accept condition = ${if !eq {$acl_m_rprf}{}} warn domains = +local_domains condition = ${if eq{${lookup{$local_part}cdb{/var/lib/misc/${primary_hostname}/mail-contentinspectionaction.cdb}{$value}{}}}{markup}} set acl_m_rprf = markup accept condition = ${if !eq {$acl_m_rprf}{}} warn domains = +local_domains condition = ${if eq{${lookup{$local_part}cdb{/var/lib/misc/${primary_hostname}/mail-contentinspectionaction.cdb}{$value}{}}}{blackhole}} set acl_m_rprf = blackhole accept condition = ${if !eq {$acl_m_rprf}{}} warn set acl_m_rprf = normal accept check_helo: warn set acl_c_scr = 0 <%- if @is_mailrelay -%> accept verify = certificate <%- end -%> <%- unless @use_smarthost -%> # These are in HELO acl so that they are only run once. They increment a counter, # so we don't want it to increment per rcpt to. warn dnslists = list.dnswl.org&0.0.0.3 log_message = Hit on list.dnswl.org for $sender_host_address set acl_c_scr = ${eval:$acl_c_scr-30} warn dnslists = list.dnswl.org&0.0.0.2 log_message = Hit on list.dnswl.org for $sender_host_address set acl_c_scr = ${eval:$acl_c_scr-20} warn dnslists = list.dnswl.org log_message = Hit on list.dnswl.org for $sender_host_address set acl_c_scr = ${eval:$acl_c_scr-10} warn condition = ${if isip {$sender_helo_name}} log_message = remote host used IP address in HELO/EHLO greeting set acl_c_scr = ${eval:$acl_c_scr+20} warn !hosts = +debianhosts condition = ${if eq{$host_lookup_failed}{1}} set acl_c_scr = ${eval:$acl_c_scr+20} warn !hosts = +debianhosts condition = ${if eq{$host_lookup_failed}{0}} 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}} set acl_c_scr = ${eval:$acl_c_scr+20} warn !hosts = +debianhosts 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}} set acl_c_scr = ${eval:$acl_c_scr+20} warn !hosts = +debianhosts dnslists = dul.dnsbl.sorbs.net set acl_c_scr = ${eval:$acl_c_scr+15} # If the sender's helo name is empty, the message will be rejected later # because the helo is empty. If the rDNS lookup failed, we are already # going to greylist them, so no sense worrying about it here. Finally, # if rDNS does not match helo name (both lower cased first), greylist. warn !hosts = +debianhosts condition = ${if !eq {$host_lookup_failed}{1}} condition = ${if def:sender_helo_name} condition = ${if !eq {${lc:$sender_helo_name}}{${lc:$sender_host_name}}} log_message = HELO doesn't match rDNS set acl_c_scr = ${eval:$acl_c_scr+8} # Regexes of doom # matches 098325879 - looks fishy warn condition = ${if and { \ { !match{$sender_helo_name}{\N^\[.+\]$\N} } \ { !match{$sender_helo_name}{\N^(?i)((?=[^-])[a-z0-9-]*[a-z0-9]\.)+[a-z]{2,6}$\N} } \ } \ } log_message = non-FQDN HELO set acl_c_scr = ${eval:$acl_c_scr+12} # Matches DOMAIN99.com - looks bad warn condition = ${if match {$sender_helo_name}{\N^[A-Z]+[A-Z0-9\-]+\.[A-Za-z0-9]+$\N}} log_message = SHOUTING HELO set acl_c_scr = ${eval:$acl_c_scr+7} # Random HELO (run of 7 consonants) (constructed by viruses). We purposefully # skip matching on machines named .*smtp.*, since that's 4 already. This is a fairly # naive test, so it's not worth much warn condition = ${if !match {${lc:$sender_helo_name}}{smtp}} condition = ${if match {${lc:$sender_helo_name}}{\N^[a-z0-9]+\.[a-z]+$\N}} condition = ${if match {${lc:$sender_helo_name}}{\N.*[bcdfghjklmnpqrstvwxz]{7,}.*\.[a-z]+$\N}} log_message = random HELO set acl_c_scr = ${eval:$acl_c_scr+5} <%- else -%> drop !hosts = +debianhosts log_message = mail from non-d.o host message = Interesting. I doubt that should have happened. <%- end -%> # Implicit, but simpler to just say it accept #!!# ACL that is used after the RCPT command on the submission port check_submission: accept hosts = +debianhosts <%- if @is_mailrelay -%> accept verify = certificate <%- end -%> # Defer after too many bad RCPT TO's. Legit MTAs will retry later. # This is a rough pass at preventing address harvesting or other mail blasts. defer log_message = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count message = Too many bad recipients, try again later condition = ${if > {${eval:$rcpt_fail_count}}{3}} defer ratelimit = 5 / 60m / per_rcpt / $sender_host_address !hosts = +debianhosts message = sorry, only 5 reports per hour for submission accept domains = +local_domains hosts = +debianhosts endpass verify = recipient <%- if @is_mailrelay -%> accept domains = +mailhubdomains endpass verify = recipient/callout=30s,defer_ok,use_sender,no_cache <%- end -%> accept domains = +submission_domains endpass verify = recipient deny message = relay not permitted #!!# ACL that is used after the RCPT command check_recipient: <%- if @is_mailrelay -%> accept verify = certificate <%- end -%> accept hosts = <; ::1 ; 127.0.0.1 ; @ warn acl = acl_getprofile condition = ${if eq{$acl_m_prf}{}} set acl_m_prf = $acl_m_rprf defer condition = ${if !eq{$acl_m_prf}{$acl_m_rprf}} message = Different profile, please retry log_message = Only one profile at a time, please # Defer after too many bad RCPT TO's. Legit MTAs will retry later. # This is a rough pass at preventing address harvesting or other mail blasts. defer log_message = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count !acl = acl_spamlovers message = Too many bad recipients, try again later !hosts = +debianhosts condition = ${if > {${eval:$rcpt_fail_count}}{3}} # Dump spambots that are so stupid they say helo as our IP address drop !hosts = +debianhosts !acl = acl_spamlovers condition = ${if eq {$sender_helo_name}{$interface_address}} message = HELO mismatch Forged HELO for ($sender_helo_name) # Also for spambots that say helo as us or one of our domains drop !hosts = +debianhosts !acl = acl_spamlovers condition = ${if match_domain{$sender_helo_name}{+ourself_and_handled}} condition = ${if !match{$sender_host_name}{${rxquote:$sender_helo_name}\N$\N}} message = HELO mismatch Forged HELO for ($sender_helo_name) # This logic gives you a list of commonly forged domains in helo to reject against warn set acl_m_frg = ${lookup{$sender_helo_name} \ nwildlsearch{/etc/exim4/helo-check} \ {${if eq{$value}{}{$sender_helo_name}{$value}}}{}} # This is a failsafe in case DNS fails - we defer instead of hard reject if they # say helo as a name in the list but we can't look them up defer !hosts = +debianhosts !acl = acl_spamlovers condition = ${if !eq{$acl_m_frg}{}} condition = ${if eq{$sender_host_name}{}} condition = ${if !eq{$host_lookup_failed}{1}} message = Access temporarily denied. Resolve failed PTR for $sender_host_address # If DNS works, go ahead and reject them drop !hosts = +debianhosts !acl = acl_spamlovers condition = ${if and { {!eq{$acl_m_frg}{}}{!match{$sender_host_name}{${rxquote:$acl_m_frg}\N$\N}}}} message = HELO mismatch Forged HELO for ($sender_helo_name) # disabled accounts don't even get local mail. deny domains = +virtual_domains condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/mail-disable}}}\ {${lookup{${extract{1}{-}{$local_part}}}lsearch{${extract{directory}{VDOMAINDATA}{${value}/mail-disable}}}{true}{false}}}\ {}} message = ${lookup{${extract{1}{-}{$local_part}}}lsearch{${extract{directory}{VDOMAINDATA}{${value}/mail-disable}}}{$value}} deny local_parts = lsearch;/var/lib/misc/$primary_hostname/mail-disable domains = +local_domains message = ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-disable}{$value}} deny domains = +virtual_domains local_parts = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/localonly}}}\ {${extract{directory}{VDOMAINDATA}{${value}/localonly}}}\ {}} hosts = !+debianhosts message = mail for <$local_part@$domain> only accepted from debian.org machines # Accept if the source is local SMTP (i.e. not over TCP/IP). # We do this by testing for an empty sending host field. accept hosts = : deny domains = +handled_domains local_parts = ^[.] : ^.*[@%!/|] deny domains = !+handled_domains local_parts = ^[./|] : ^.*[@%!] : ^.*/\\.\\./ deny condition = ${lookup{$sender_address_local_part}lsearch{/etc/exim4/localusers}{true}} sender_domains= +local_domains hosts = !+debianhosts message = mail from <$sender_address> not allowed externally deny sender_domains= +virtual_domains condition = ${if exists {${extract{directory}{VSENDERDOMAINDATA}{${value}/localusers}}}} condition = ${lookup{$sender_address_local_part}lsearch{${extract{directory}{VSENDERDOMAINDATA}{${value}/localusers}}}{true}} hosts = !+debianhosts message = mail from <$sender_address> not allowed externally deny condition = ${if match_domain{$sender_address_domain}{+virtual_domains}} condition = ${if exists {${extract{directory}{VSENDERDOMAINDATA}{${value}/neversenders}}}} condition = ${lookup{$sender_address_local_part}lsearch{${extract{directory}{VSENDERDOMAINDATA}{${value}/neversenders}}}{true}} message = no mail should ever come from <$sender_address> warn condition = ${if eq{$acl_m_prf}{localonly}} set acl_m_lrc = ${if eq{$acl_m_lrc}{}{$local_part@$domain}{$acl_m_lrc, $local_part@$domain}} <%- if @is_packagesmaster -%> warn condition = ${if eq {$acl_m_prf}{PackagesMail}} condition = ${if eq {$sender_address}{$local_part@$domain}} message = X-Packages-FromTo-Same: yes <%- end -%> deny condition = ${if !eq {$acl_m_prf}{PopconMail}} !verify = sender defer !hosts = +debianhosts condition = ${if !eq {$acl_m_prf}{PopconMail}} condition = ${if >{${eval:$acl_c_scr+0}}{0}} ratelimit = 10 / 60m / per_rcpt / $sender_host_address message = slow down (no reverse dns, mismatched ehlo, dialup, or in blacklists) <%- if has_variable?("policydweight") && @policydweight -%> # Check with policyd-weight warn !hosts = +debianhosts condition = ${if !eq {$acl_m_prf}{PopconMail}} set acl_m_pw = ${readsocket{inet:127.0.0.1:12525}\ {request=smtpd_access_policy\n\ protocol_state=RCPT\n\ protocol_name=${uc:$received_protocol}\n\ helo_name=$sender_helo_name\n\ queue_id=$message_exim_id\n\ sender=$sender_address\n\ recipient=$local_part@$domain\n\ recipient_count=$rcpt_count\n\ client_address=$sender_host_address\n\ client_name=$sender_host_name\n\ reverse_client_name=$sender_host_name\n\ instance=$sender_host_address.$sender_address.$sender_helo_name\n\n}\ {20s}{\n}{socket failure}} # Defer on socket error defer !hosts = +debianhosts condition = ${if !eq {$acl_m_prf}{PopconMail}} condition = ${if eq{$acl_m_pw}{socket failure}} message = Cannot connect to policyd-weight. Please try again later. # Set proposed action to $acl_m_act and message to $acl_m_mes warn !hosts = +debianhosts condition = ${if !eq {$acl_m_prf}{PopconMail}} set acl_m_mes = ${extract{action}{$acl_m_pw}} set acl_m_act = ${sg{$acl_m_pw}{\Naction=[^ ]+ (.*)\n\n\N}{\$1}} # Add X-policyd-weight header line to message warn !hosts = +debianhosts condition = ${if !eq {$acl_m_prf}{PopconMail}} message = $acl_m_mes condition = ${if eq{$acl_m_act}{PREPEND}} # Write log message, if policyd-weight can't run checks warn !hosts = +debianhosts condition = ${if !eq {$acl_m_prf}{PopconMail}} log_message = policyd-weight message: $acl_m_mes condition = ${if eq{$acl_m_act}{DUNNO}} # Deny mails which policyd-weight thinks are spam deny !hosts = +debianhosts condition = ${if !eq {$acl_m_prf}{PopconMail}} message = policyd-weight said: $acl_m_mes condition = ${if eq{$acl_m_act}{550}} # Defer messages when policyd-weight suggests so. defer !hosts = +debianhosts condition = ${if !eq {$acl_m_prf}{PopconMail}} message = policyd-weight said: $acl_m_mes condition = ${if eq{$acl_m_act}{450}} <%- end -%> <%- if @is_rtmaster -%> warn condition = ${if eq{$acl_m_prf}{RTMail}} 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}}}} # temporary hack because weasel screwed up and gave people an rt-3520@ address, which doesn't really work normally. and rt-3645 #set acl_m12 = ${if def:acl_m12 {$acl_m12} {${if or{{match{$local_part}{\N[^+]+\+\d+\N}}{match{$local_part}{\N[^+]+\+new\N}}} {RTMailRecipientHasSubaddress}}}} <%- end -%> <%- if has_variable?("greylistd") && @greylistd -%> defer message = $sender_host_address is not yet authorized to deliver mail from <$sender_address> to <$local_part@$domain>. log_message = greylisted. local_parts = ${if match_domain{$domain}{+virtual_domains}\ {${if exists {${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}\ {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}{$local_part}{}}}{}}}\ {${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}} : \ ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}}}} !senders = : !hosts = : +debianhosts : WHITELIST : \ ${if exists {/etc/greylistd/whitelist-hosts}\ {/etc/greylistd/whitelist-hosts}{}} : \ ${if exists {/var/lib/greylistd/whitelist-hosts}\ {/var/lib/greylistd/whitelist-hosts}{}} condition = ${if !eq {$acl_m_prf}{PopconMail}} !authenticated = * domains = +handled_domains condition = ${readsocket{/var/run/greylistd/socket}\ {--grey \ $sender_host_address \ $sender_address \ $local_part@$domain}\ {5s}{}{false}} <%- elsif has_variable?("postgrey") && @postgrey -%> # next three are greylisting, inspired by http://www.bebt.de/blog/debian/archives/2006/07/30/T06_12_27/index.html # this adds acl_m_grey if there isn't one (so unique per message) warn !senders = : !hosts = : +debianhosts : WHITELIST condition = ${if !eq {$acl_m_prf}{PopconMail}} condition = ${if ! def:acl_m_grey} set acl_m_grey = $pid.$tod_epoch.$sender_host_port # and defers the message if postgrey thinks it should be defered ... defer !senders = : !hosts = : +debianhosts : WHITELIST condition = ${if !eq {$acl_m_prf}{PopconMail}} !authenticated = * domains = +handled_domains local_parts = GREYLIST_LOCAL_PARTS set acl_m_pgr = request=smtpd_access_policy\n\ protocol_state=RCPT\n\ protocol_name=${uc:$received_protocol}\n\ instance=${acl_m_grey}\n\ helo_name=${sender_helo_name}\n\ <%- if scope.call_function('versioncmp', [@lsbmajdistrelease, '8']) <= 0 -%> client_address=${substr_-3:${mask:$sender_host_address/24}}\n\ <%- else -%> client_address=${sender_host_address}\n\ <%- end -%> client_name=${sender_host_name}\n\ sender=${sender_address}\n\ recipient=$local_part@$domain\n\n set acl_m_pgr = ${sg{\ ${readsocket{/var/run/postgrey/socket}{$acl_m_pgr}\ {5s}{}{action=DUNNO}}\ }{action=}{}} message = ${sg{$acl_m_pgr}{^\\w+\\s*}{}} log_message = greylisted. condition = ${if eq{${uc:${substr{0}{5}{$acl_m_pgr}}}}{DEFER}} # ... or adds a header with information about how long the delay was warn !senders = : !hosts = : +debianhosts : WHITELIST condition = ${if !eq {$acl_m_prf}{PopconMail}} !authenticated = * domains = +handled_domains local_parts = GREYLIST_LOCAL_PARTS condition = ${if eq{${uc:${substr_0_7:$acl_m_pgr}}}{PREPEND}} message = ${sg{$acl_m_pgr}{^\\w+\\s*}{}} <%- end -%> deny hosts = ${if exists{/etc/exim4/host_blacklist}{/etc/exim4/host_blacklist}{}} message = I'm terribly sorry, but it seems you have been blacklisted log_message = blacklisted IP deny log_message = <$sender_address> is blacklisted senders = ${if exists{/etc/exim4/blacklist}{/etc/exim4/blacklist}{}} message = We have blacklisted <$sender_address>. Please stop mailing us accept local_parts = +postmasterish domains = +virtual_domains : +bsmtp_domains <%- unless @use_smarthost -%> deny message = host $sender_host_address is listed in $dnslist_domain; see $dnslist_text dnslists = ${if match_domain{$domain}{+virtual_domains}\ {${if exists {${extract{directory}{VDOMAINDATA}{${value}/rbllist}}}\ {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/rbllist}}}{$value}{}}}{}}}\ {${lookup{$local_part}lsearch{/etc/exim4/rbllist}{$value}{}}}} : \ ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-rbl}{$value}{}} domains = +handled_domains !hosts = +debianhosts : WHITELIST <%- end -%> deny message = domain $sender_address_domain is listed in $dnslist_domain; see $dnslist_text dnslists = ${if match_domain{$domain}{+virtual_domains}\ {${if exists {${extract{directory}{VDOMAINDATA}{${value}/rhsbllist}}}\ {${expand:${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/rhsbllist}}}{$value}{}}}}{}}}\ {${expand:${lookup{$local_part}lsearch{/etc/exim4/rhsbllist}{$value}{}}}}} : \ ${expand:${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-rhsbl}{$value}{}}} domains = +handled_domains !hosts = +debianhosts : WHITELIST <%- unless @use_smarthost -%> deny domains = +handled_domains local_parts = ${if match_domain{$domain}{+virtual_domains}\ {${if exists {${extract{directory}{VDOMAINDATA}{${value}/callout_users}}}\ {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/callout_users}}}{$local_part}{}}}{}}}\ {${lookup{$local_part}lsearch{/etc/exim4/callout_users}{$local_part}{}}}} : \ ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-callout}{$local_part}{}} !hosts = +debianhosts : WHITELIST !verify = sender/callout=90s,maxwait=300s message = "Sender verification failed: $acl_verify_message" <%- end -%> <%- if @is_mailrelay -%> accept domains = +mailhubdomains endpass verify = recipient/callout=30s,defer_ok,use_sender,no_cache <%- end -%> accept domains = +handled_domains endpass verify = recipient/defer_ok accept hosts = +debianhosts accept authenticated = * deny message = relay not permitted <%- if @heavy -%> acl_check_mime: accept verify = certificate accept hosts = +debianhosts discard condition = ${if <{$message_size}{MAX_SCAN_SIZE}} condition = ${if eq {$acl_m_prf}{blackhole}} set acl_m_srb = ${perl{surblspamcheck}} condition = ${if !eq{$acl_m_srb}{false}} log_message = discarded surbl message for $recipients deny condition = ${if <{$message_size}{MAX_SCAN_SIZE}} condition = ${if !eq {$acl_m_prf}{markup}} condition = ${if !eq {$acl_m_prf}{PopconMail}} set acl_m_srb = ${perl{surblspamcheck}} condition = ${if !eq{$acl_m_srb}{false}} log_message = $acl_m_srb message = $acl_m_srb warn condition = ${if <{$message_size}{MAX_SCAN_SIZE}} condition = ${if eq {$acl_m_prf}{markup}} set acl_m_srb = ${perl{surblspamcheck}} condition = ${if !eq{$acl_m_srb}{false}} message = X-Surbl-Hit: $primary_hostname: $acl_m_srb accept <%- end -%> acl_check_predata: deny condition = ${if eq{$acl_m_prf}{localonly}} message = mail for $acl_m_lrc is only accepted internally accept #!!# ACL that is used after the DATA command check_message: # Some people put from postmaster@something.debian.org in the From # header. Take their crack pipe away. drop condition = ${if match{${lc:$h_From:}}{\Npostmaster@([^.]+\.)?debian\.org\N}} <%- if @is_rtmaster -%> deny condition = ${if eq {$acl_m_prf}{RTMail}} condition = ${if and{{!match {${lc:$rh_Subject:}} {debian rt}} \ {!match {${lc:$rh_Subject:]}} {\N\[rt.debian.org \N}} \ {!match {$acl_m12}{RTMailRecipientHasSubaddress}}}} message = messages to the Request Tracker system require a subject tag or a subaddress <%- end -%> <%- if @is_packagesqamaster -%> deny !hosts = +debianhosts condition = ${if eq {$acl_m_prf}{PTSMail}} condition = ${if !def:h_X-PTS-Approved:} message = messages to the PTS require an X-PTS-Approved header <%- end -%> deny condition = ${if eq {$acl_m_prf}{DBSignedMail}} condition = ${if and {{!match {$message_body}{PGP MESSAGE}} \ {!match {$message_body}{PGP SIGNED MESSAGE}} \ {!match {$message_body}{PGP SIGNATURE}} \ {!match {$header_content-type:}{multipart/signed}} \ {!match {$header_content-type:}{pgp}} \ } \ } message = Mail to this address needs to be PGP-signed accept verify = certificate accept hosts = +debianhosts deny condition = ${if !eq {$acl_m_prf}{PopconMail}} !verify = header_syntax message = Invalid header syntax: $acl_verify_message # RFC 822 and 2822 say that headers must be ASCII. This kinda emulates # postfix's strict_7bit_headers option, but only checks a few common problem # headers, as there doesn't appear to be an easy way to check them all. deny condition = ${if or {{match {$rh_Subject:}{[\200-\377]}}\ {match {$rh_To:}{[\200-\377]}}\ {match {$rh_From:}{[\200-\377]}}\ {match {$rh_Cc:}{[\200-\377]}}}} condition = ${if !eq {$acl_m_prf}{PopconMail}} message = improper use of 8-bit data in message header: message rejected deny condition = ${if match {$rh_Subject:}{[^[:print:]]\{8\}}} condition = ${if !eq {$acl_m_prf}{PopconMail}} message = Your mailer is not RFC 2047 compliant: message rejected <%- if has_variable?("clamd") && @clamd -%> discard condition = ${if eq {$acl_m_prf}{blackhole}} <%- if scope.call_function('versioncmp', [@lsbmajdistrelease, '8']) <= 0 -%> demime = * <%- end -%> malware = */defer_ok log_message = discarded malware message for $recipients deny condition = ${if !eq {$acl_m_prf}{markup}} condition = ${if !eq {$acl_m_prf}{PopconMail}} <%- if scope.call_function('versioncmp', [@lsbmajdistrelease, '8']) <= 0 -%> demime = * <%- end -%> malware = */defer_ok message = malware detected: $malware_name: message rejected warn condition = ${if eq {$acl_m_prf}{markup}} <%- if scope.call_function('versioncmp', [@lsbmajdistrelease, '8']) <= 0 -%> demime = * <%- end -%> malware = */defer_ok message = X-malware detected: $malware_name <%- end -%> <%- if @heavy -%> discard condition = ${if <{$message_size}{MAX_SCAN_SIZE}} condition = ${if eq {$acl_m_prf}{blackhole}} set acl_m_srb = ${perl{surblspamcheck}} condition = ${if !eq{$acl_m_srb}{false}} log_message = discarded surbl message for $recipients deny condition = ${if <{$message_size}{MAX_SCAN_SIZE}} condition = ${if !eq {$acl_m_prf}{markup}} condition = ${if !eq {$acl_m_prf}{PopconMail}} set acl_m_srb = ${perl{surblspamcheck}} condition = ${if !eq{$acl_m_srb}{false}} log_message = $acl_m_srb message = $acl_m_srb warn condition = ${if <{$message_size}{MAX_SCAN_SIZE}} condition = ${if eq {$acl_m_prf}{markup}} set acl_m_srb = ${perl{surblspamcheck}} condition = ${if !eq{$acl_m_srb}{false}} message = X-Surbl-Hit: $primary_hostname: $acl_m_srb <%- end -%> # Check header_sender except for survey@popcon.d.o deny condition = ${if !eq{$acl_m_prf}{PopconMail}} !verify = header_sender message = No valid sender found in the From:, Sender: and Reply-to: headers <%- if @is_packagesmaster -%> deny message = Congratulations, you scored $spam_score points. log_message = spam: $spam_score points. condition = ${if eq {$acl_m_prf}{PackagesMail}} !authenticated = * !verify = certificate !hosts = +debianhosts condition = ${if <{$message_size}{MAX_SCAN_SIZE}} spam = pkg_user : true condition = ${if >{$spam_score_int}{59}} <%- end -%> accept ###################################################################### # REWRITE CONFIGURATION # ###################################################################### begin rewrite \N^buildd_(.*)@fasolo\.debian\.org$\N buildd_$1@buildd.debian.org T *@debian.org ${lookup{$1}cdb{/var/lib/misc/${primary_hostname}/mail-forward.cdb}{$value}fail} T *@people.debian.org ${lookup{$1}cdb{/var/lib/misc/${primary_hostname}/mail-forward.cdb}{$value}fail} T #*@${primary_hostname} "${if exists{/etc/exim4/email-addresses}{${lookup{$1}lsearch{/etc/exim4/email-addresses}{$value}fail}}fail}" fFs #!!#######################################################!!# #!!# Here follow routers created from the old routers, #!!# #!!# for handling non-local domains. #!!# #!!#######################################################!!# begin routers ###################################################################### # ROUTERS CONFIGURATION # # Specifies how addresses are handled # ###################################################################### # ORDER DOES MATTER # # An address is passed to each in turn until it is accepted. # ###################################################################### <%- if @is_mailrelay -%> relay_manualroute: driver = manualroute domains = +mailhubdomains transport = ${if forany{${lookup dnsdb{>: mxh=$domain}}}\ {match_domain{$item}{+single_domain_mx}}\ {remote_smtp_single_domain}{remote_smtp}\ } route_data = ${lookup{$domain}lsearch{/etc/exim4/manualroute}} require_files = /etc/exim4/manualroute <%- end -%> bsmtp: debug_print = "R: bsmtp for $local_part@$domain" driver = manualroute domains = +bsmtp_domains require_files = /etc/exim4/bsmtp route_list = * ${extract{file}{\ ${lookup{$domain}partial-lsearch{/etc/exim4/bsmtp}\ {$value}fail}}} transport = bsmtp # This router routes to remote hosts over SMTP by explicit IP address, # given as a "domain literal" in the form [nnn.nnn.nnn.nnn]. The RFCs # require this facility, which is why it is enabled by default in Exim. ipliteral: debug_print = "R: ipliteral for $local_part@$domain" driver = ipliteral domains = !+handled_domains transport = remote_smtp ignore_target_hosts = +reservedaddrs <%- if @use_smarthost -%> smarthost: debug_print = "R: smarthost for $local_part@$domain" driver = manualroute domains = !+handled_domains transport = remote_smtp_smarthost route_list = * <%= @smarthost %> host_find_failed = defer same_domain_copy_routing = yes no_more <%- end -%> # This router routes to remote hosts over SMTP using a DNS lookup. # Ignore reserved network responses, including localhost. dnslookup: debug_print = "R: dnslookup for $local_part@$domain" driver = dnslookup domains = !+handled_domains transport = ${if forany{${lookup dnsdb{>: mxh=$domain}}}\ {match_domain{$item}{+single_domain_mx}}\ {remote_smtp_single_domain}{remote_smtp}\ } ignore_target_hosts = +reservedaddrs no_more postmasterish: debug_print = "R: postmasterish for $local_part@$domain" driver = redirect verify = false unseen = true expn = true local_parts = +postmasterish domains = +virtual_domains : +bsmtp_domains data = debian-admin@debian.org headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}" # This router handles aliasing using a traditional /etc/aliases file. # If any of your aliases expand to pipes or files, you will need to set # up a user and a group for these deliveries to run under. You can do # this by uncommenting the "user" option below (changing the user name # as appropriate) and adding a "group" option if necessary. system_aliases: debug_print = "R: system_aliases for $local_part@$domain" driver = redirect allow_defer allow_fail data = ${lookup{$local_part}lsearch*{/etc/aliases}} domains = +local_domains file_transport = address_file headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}" pipe_transport = address_pipe retry_use_local_part # This router handles forwarding using traditional .forward files. # It also allows mail filtering when a forward file starts with the # string "# Exim filter": to disable filtering, uncomment the "filter" # option. The check_ancestor option means that if the forward file # generates an address that is an ancestor of the current one, the # current one gets passed on instead. This covers the case where A is # aliased to B and B has a .forward file pointing to A. # For standard Debian setup of one group per user, it is acceptable---normal # even---for .forward to be group writable. If you have everyone in one # group, you should comment out the "modemask" line. Without it, the Exim # default of 022 will apply, which is probably what you want. userforward_verify: debug_print = "R: userforward for $local_part${local_part_suffix}@$domain" driver = redirect check_ancestor user = Debian-exim no_check_local_user directory_transport = address_directory domains = +local_domains # filter - I have disabled filtering to force users to use .forward-foo files # or procmail. This will make it easier to move mailers in the future # # This bit does the qmailesque extension names, foo-bar@ is .forward-foo it # also checks if the .forward-bar exists, if not then it uses # .forward-default instead. file = $home/.forward\ ${if eq{}{$local_part_suffix}{}{\ ${if exists {${home}/.forward${local_part_suffix}} \ {${local_part_suffix}}{-default}}\ }\ } file_transport = address_file headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}" local_part_suffix = -* local_part_suffix_optional modemask = 002 pipe_transport = address_pipe reply_transport = address_reply require_files = $home router_home_directory = ${lookup passwd{$local_part}{${extract{5}{:}{$value}}}fail} verify_only # This is a sendmailesque alias file lookup virt_aliases: debug_print = "R: virt_aliases for $local_part@$domain" driver = redirect allow_defer allow_fail data = ${if exists{\ ${extract{directory}{VDOMAINDATA}{${value}/aliases}}}\ {${lookup{$local_part}lsearch*{\ ${extract{directory}{VDOMAINDATA}{$value/aliases}}\ }}}} directory_transport = address_directory domains = +virtual_domains file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}} cannot_route_message = Unknown user group = ${extract{group}{VDOMAINDATA}} headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}" pipe_transport = address_pipe qualify_preserve_domain retry_use_local_part transport_current_directory = ${extract{directory}{VDOMAINDATA}} transport_home_directory = ${extract{directory}{VDOMAINDATA}} user = ${extract{user}{VDOMAINDATA}} # No direct match, so try doing a regex match if there's an # aliases.regex virt_aliases_regex: debug_print = "R: virt_aliases_regex for $local_part$local_part_suffix@$domain" driver = redirect allow_defer allow_fail data = ${if exists{\ ${extract{directory}{VDOMAINDATA}{${value}/aliases.regex}}}\ {${lookup{$local_part}nwildlsearch*{\ ${extract{directory}{VDOMAINDATA}{$value/aliases.regex}}\ }}}} directory_transport = address_directory domains = +virtual_domains file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}} cannot_route_message = Unknown user group = ${extract{group}{VDOMAINDATA}} headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}" pipe_transport = address_pipe qualify_preserve_domain retry_use_local_part transport_current_directory = ${extract{directory}{VDOMAINDATA}} transport_home_directory = ${extract{directory}{VDOMAINDATA}} user = ${extract{user}{VDOMAINDATA}} userforward: debug_print = "R: userforward for $local_part${local_part_suffix}@$domain" driver = redirect check_ancestor check_local_user directory_transport = address_directory domains = +local_domains # filter - I have disabled filtering to force users to use .forward-foo files # or procmail. This will make it easier to move mailers in the future # # This bit does the qmailesque extension names, foo-bar@ is .forward-foo it # also checks if the .forward-bar exists, if not then it uses # .forward-default instead. file = $home/.forward\ ${if eq{}{$local_part_suffix}{}{\ ${if exists {${home}/.forward${local_part_suffix}} \ {${local_part_suffix}}{-default}}\ }\ } file_transport = address_file headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}" local_part_suffix = -* local_part_suffix_optional modemask = 002 pipe_transport = address_pipe reply_transport = address_reply require_files = $home no_verify # This delivers to procmail procmail: debug_print = "R: procmail for $local_part@$domain" driver = accept check_local_user domains = +local_domains headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}" local_part_suffix = -* local_part_suffix_optional no_verify no_expn require_files = $local_part:$home/.procmailrc transport = procmail_pipe transport_current_directory = $home # This driver delivers to the LDAP generated alias file. ldap_aliases: debug_print = "R: ldap_aliases for $local_part@$domain" driver = redirect allow_defer allow_fail data = ${if exists{/var/lib/misc/$primary_hostname/user-forward.cdb}\ {${lookup{$local_part}cdb\ {/var/lib/misc/$primary_hostname/user-forward.cdb}}}} domains = +local_domains file_transport = address_file local_part_suffix = -* local_part_suffix_optional headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}" pipe_transport = address_pipe retry_use_local_part # This director matches local user mailboxes. localuser: debug_print = "R: localuser for $local_part@$domain" driver = accept check_local_user domains = +local_domains local_part_suffix = -* local_part_suffix_optional headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}" # Disable if the user has never logged in require_files = $home transport = local_delivery no_more # Now we begin the Virtual Domain configuration # Everything before here should apply only to the local domains with a # domains= rule <%- if @is_packagesmaster -%> # This router delivers for packages.d.o packages: debug_print = "R: packages for $local_part@$domain" driver = redirect file_transport = address_file pipe_transport = address_pipe domains = packages.debian.org require_files = /srv/packages.debian.org/conf/maintainer data = ${lookup{$local_part}cdb{/srv/packages.debian.org/conf/maintainer.cdb}} headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}" transport_home_directory = /srv/packages.debian.org/mail transport_current_directory = /srv/packages.debian.org/mail check_ancestor retry_use_local_part no_more <%- end -%> <%- if @is_rtmaster -%> # This router delivers for rt.d.o rt_force_new_verbose: debug_print = "R: rt for $local_part+new@$domain" driver = redirect domains = rt.debian.org require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP local_parts = ${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}} local_part_suffix = +new pipe_transport = rt_pipe 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}}" headers_remove = Subject headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nSubject: ${if and {{first_delivery}{match {$h_subject:}{(?is)(.*?)\\\\[?debian rt\\\\]?[:\\s]*(.*)}}} {$1$2}{$h_subject:}}" # FIXME: figure out how to generalize this approach so that all of the following would work # - rt+NNNN@rt.debian.org : attach correspondence to ticket (verbose) # - rt+NNNN-quiesce@rt.debian.org : attach correspondence to ticket (quiesce) # - rt+NNNN-@rt.debian.org : attach correspondence to ticket (some action) # requires modification to custom condition in 'scrips' rt_force_new_quiesce: debug_print = "R: rt for $local_part+new-quiesce@$domain" driver = redirect domains = rt.debian.org require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP local_parts = ${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}} local_part_suffix = +new-quiesce pipe_transport = rt_pipe 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}}" headers_remove = Subject headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nX-RT-Mode: quiesce\nSubject: ${if and {{first_delivery}{match {$h_subject:}{(?is)(.*?)\\\\[?debian rt\\\\]?[:\\s]*(.*)}}} {$1$2}{$h_subject:}}" rt_otherwise: debug_print = "R: rt for $local_part@$domain" driver = redirect domains = rt.debian.org require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP local_parts = ${lookup{${sg{$local_part}{-(comment|done)}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}} local_part_suffix = +* local_part_suffix_optional pipe_transport = rt_pipe 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}}}}" headers_remove = Subject headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nSubject: ${if and {{first_delivery}{match {$h_subject:}{(?i)(.*?)\\\\[?debian rt\\\\]?[:\\s]*(.*)}}} {$1$2}{$h_subject:}}" <%- end -%> # Exim fails the router if it can't change to the user/group for delivery # during verification. So we have to separate the cases of verifying # the virts, and delivering to them. blah. virt_direct_verify: debug_print = "R: virt_direct for $local_part@$domain" driver = redirect no_check_local_user user = Debian-exim allow_filter modemask = 002 directory_transport = address_directory domains = +virtual_domains local_part_suffix = -* local_part_suffix_optional file = $home/.forward-\ ${if exists {${home}/.forward-${local_part}}{${local_part}}\ {default}} file_transport = address_file pipe_transport = address_pipe reply_transport = address_reply retry_use_local_part router_home_directory = ${extract{directory}{VDOMAINDATA}} transport_current_directory = ${extract{directory}{VDOMAINDATA}} verify_only # This is a qmailesque deliver into a directory of .forward files virt_direct: debug_print = "R: virt_direct for $local_part@$domain" driver = redirect allow_filter allow_fail allow_defer no_check_local_user directory_transport = address_directory domains = +virtual_domains file = $home/.forward-\ ${if exists {${home}/.forward-${local_part}}{${local_part}}\ {default}} file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}} group = ${extract{group}{VDOMAINDATA}} headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}" modemask = 002 local_part_suffix = -* local_part_suffix_optional pipe_transport = address_pipe reply_transport = address_reply retry_use_local_part router_home_directory = ${extract{directory}{VDOMAINDATA}} transport_current_directory = ${extract{directory}{VDOMAINDATA}} no_verify user = ${extract{user}{VDOMAINDATA}} #debug_print = .forward-${if exists {${home}/.forward-${local_part}} {${local_part}} {default}} # This router delivers to the LDAP generated mail-forward file. # It's only really useful for debian.org virt_users: debug_print = "R: virt_users for $local_part@$domain" driver = redirect allow_defer allow_fail router_home_directory = ${extract{directory}{VDOMAINDATA}} transport_current_directory = ${extract{directory}{VDOMAINDATA}} user = ${extract{user}{VDOMAINDATA}} group = ${extract{group}{VDOMAINDATA}} # Manually construct the forwarding address, preserving the # local_part_suffix if the remote host is master. data = ${if and {{exists{${extract{directory}{VDOMAINDATA}{${value}/mail-forward.cdb}}}}\ {! eq {${lookup{$local_part}cdb\ {${extract{directory}{VDOMAINDATA}{${value}/mail-forward.cdb}}}}}\ {}}}\ {${local_part:${lookup{$local_part}cdb\ {${extract{directory}{VDOMAINDATA}{${value}/mail-forward.cdb}}}}}\ ${if eq {${domain:${lookup{$local_part}cdb\ {${extract{directory}{VDOMAINDATA}{${value}/mail-forward.cdb}}}}}}{master.debian.org}{$local_part_suffix} {}}\ @\ ${domain:${lookup{$local_part}cdb\ {${extract{directory}{VDOMAINDATA}{${value}/mail-forward.cdb}}}}}}} domains = +virtual_domains file_transport = address_file headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}" pipe_transport = address_pipe local_part_suffix = -* local_part_suffix_optional retry_use_local_part <%- if @is_bugsmx -%> # This router delivers for bugs.d.o bugs: debug_print = "R: bugs for $local_part@$domain" driver = accept transport = bugs_pipe domains = bugs.debian.org cannot_route_message = Unknown or archived bug require_files = /srv/bugs.debian.org/mail/run-procmail no_more local_parts = ${if match\ {$local_part}\ {\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).*))?$\N}\ {${if exists{/srv/bugs.debian.org/spool/db-h/$2/$1$2.summary}\ {$local_part}fail}}fail} <%- end -%> ###################################################################### # TRANSPORTS CONFIGURATION # ###################################################################### # ORDER DOES NOT MATTER # # Only one appropriate transport is called for each delivery. # ###################################################################### begin transports # This transport is used for local delivery to user mailboxes. On Debian # systems group mail is used so we can write to the /var/mail # directory. (The alternative, which most other unixes use, is to deliver # as the user's own group, into a sticky-bitted directory) local_delivery: driver = appendfile file = /var/mail/${local_part} group = mail mode = 0660 no_mode_fail_narrower return_path_add # This transport is used for handling pipe addresses generated by alias # or .forward files. It has a conventional name, since it is not actually # mentioned elsewhere in this configuration file. (A different name *can* # be specified via the "address_pipe_transport" option if you really want # to.) If the pipe generates any standard output, it is returned to the sender # of the message as a delivery error. Set return_fail_output instead if you # want this to happen only when the pipe fails to complete normally. address_pipe: driver = pipe current_directory = ${home} environment = "EXTENSION=${substr_1:${local_part_suffix}}:\ EXT=${substr_1:${local_part_suffix}}:\ LOCAL=${local_part}${local_part_suffix}:\ RECIPIENT=${local_part}${local_part_suffix}@${domain}" return_output return_path_add # This transport is used for handling file addresses generated by alias # or .forward files. It has a conventional name, since it is not actually # mentioned elsewhere in this configuration file. address_file: driver = appendfile return_path_add address_file_group: driver = appendfile return_path_add mode = 0660 directory_mode = 0770 mode_fail_narrower = false # This transport is used for handling file addresses generated by alias # or .forward files if the path ends in "/", which causes it to be treated # as a directory name rather than a file name. Each message is then delivered # to a unique file in the directory. If instead you want all such deliveries to # be in the "maildir" format that is used by some other mail software, # uncomment the final option below. If this is done, the directory specified # in the .forward or alias file is the base maildir directory. # # Should you want to be able to specify either maildir or non-maildir # directory-style deliveries, then you must set up yet another transport, # called address_directory2. This is used if the path ends in "//" so should # be the one used for maildir, as the double slash suggests another level # of directory. In the absence of address_directory2, paths ending in // # are passed to address_directory. address_directory: driver = appendfile check_string = maildir_format message_prefix = "" message_suffix = "" return_path_add # This transport is used for handling autoreplies generated by the filtering # option of the forwardfile director. It has a conventional name, since it # is not actually mentioned elsewhere in this configuration file. address_reply: driver = autoreply # This transport is used for delivering messages over SMTP connections. remote_smtp: driver = smtp connect_timeout = 15s delay_after_cutoff = false tls_certificate = /etc/exim4/ssl/thishost.crt tls_privatekey = /etc/exim4/ssl/thishost.key remote_smtp_single_domain: driver = smtp connect_timeout = 15s delay_after_cutoff = false no_multi_domain tls_certificate = /etc/exim4/ssl/thishost.crt tls_privatekey = /etc/exim4/ssl/thishost.key <%- if @use_smarthost -%> remote_smtp_smarthost: debug_print = "T: remote_smtp_smarthost for $local_part@$domain" driver = smtp delay_after_cutoff = false port = <%= @smarthost_port %> tls_tempfail_tryclear = false hosts_require_tls = <%= @smarthost %> tls_certificate = /etc/exim4/ssl/thishost.crt tls_privatekey = /etc/exim4/ssl/thishost.key <%- end -%> # Send the message to procmail procmail_pipe: driver = pipe command = /usr/bin/procmail -a ${substr_1:${local_part_suffix}} return_path_add user = ${local_part} bsmtp: driver = appendfile batch_max = 100 file = ${host} message_prefix = message_suffix = use_bsmtp user = ${extract{user}{\ ${lookup{$domain}partial-lsearch{/etc/exim4/bsmtp}\ {$value}fail}\ }} <%- if @is_bugsmx -%> bugs_pipe: driver = pipe command = /srv/bugs.debian.org/mail/run-procmail environment = "EXTENSION=${substr_1:${local_part_suffix}}:\ EXT=${substr_1:${local_part_suffix}}:\ LOCAL=${local_part}${local_part_suffix}:\ RECIPIENT=${local_part}${local_part_suffix}@${domain}" return_path_add return_output user = debbugs <%- end -%> <%- if @is_rtmaster -%> rt_pipe: debug_print = "T: rt_pipe for $local_part${local_part_suffix}@$domain" driver = pipe return_fail_output environment = EXTENSION=${substr_1:${local_part_suffix}} allow_commands = /usr/bin/rt-mailgate <%- end -%> ###################################################################### # RETRY CONFIGURATION # ###################################################################### # This single retry rule applies to all domains and all errors. It specifies # retries every 15 minutes for 2 hours, then increasing retry intervals, # starting at 2 hours and increasing each time by a factor of 1.5, up to 16 # hours, then retries every 8 hours until 4 days have passed since the first # failed delivery. # Domain Error Retries # ------ ----- ------- begin retry debian.org * F,2h,10m; G,16h,2h,1.5; F,14d,8h * * senders=: F,2h,10m * rcpt_4xx F,2h,5m; F,4h,10m; F,4d,15m * * F,2h,15m; G,16h,2h,1.5; F,4d,8h # End of Exim 4 configuration