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
6 # This is the main exim4 configuration file based on the 28.08.05 version by
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.
13 # This configuration file brings in the necessary information from
14 # other databases stored in /etc/exim4/ and the files distributed by ud-ldap
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
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
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
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
46 # From /var/lib/misc / UD:
48 # mail-forward.db - aliases for @d.o
49 # user-forward.db - aliases for @thishost.d.o
51 # Note that the BDB files generated by ud-ldap use keys that are not
52 # null-terminated, so Exim needs to use the "dbmnz" lookup type, rather
55 # Exim's wildcard mechanism is a bit odd in that to say "any address in
56 # debian.org including debian.org" you must use two patterns,
59 # Also you can only place a * before a . and as the first char in a string.
60 # Wildcards always match last so they may be used as a catchall.
62 # Further details can be found in each of the files.
64 # Useful Exim commands:
65 # exim4 -qf - Try sending all messages right now, including frozen ones
66 # exim4 -bt foo@blah - Write what Exim would do if it saw the address
67 # Great for testing virtual domains and forward files
69 # Special Features for users:
70 # .forward-foo - is understood as an extension address for bar-foo@cow.com
71 # .forward-default - is understood to be a catch all for bar-*@cow.com
72 # .procmailrc - with no .forward file invokes procmail for delivery
75 # For virtual domains the first lookup is done against a linear text
76 # database called 'aliases', then .forward files are consulted. Exim
77 # filtering is available for these .forward files only. .forward-default
78 # is the universal catch all for everything not handled.
80 # Heuristic check (none bad enough to cause a hard reject, but in aggregate
81 # will trigger things like rcpt to rate limiting or possibly a reject if
82 # enough hits are triggered).
84 # value is stored in acl_c_scr
86 ######################################################################
87 # MAIN CONFIGURATION SETTINGS #
88 ######################################################################
91 perl_startup = do '/etc/exim4/exim_surbl.pl'
94 # These options specify the Access Control Lists (ACLs) that
95 # are used for incoming SMTP messages - after the RCPT and DATA
96 # commands, respectively.
98 acl_smtp_helo = check_helo
99 acl_smtp_rcpt = ${if ={$interface_port}{587} {check_submission}{check_recipient}}
100 acl_smtp_data = check_message
102 acl_smtp_mime = acl_check_mime
104 acl_smtp_predata = acl_check_predata
106 # accept domain literal syntax in e-mail addresses. To actually make use of
107 # this a router is also required
108 allow_domain_literals = true
110 # This setting defines a named domain list called
111 # local_domains. It will be referenced
112 # later on by the syntax "+local_domains".
113 # Other domain and host lists may follow.
114 # @ is the local FQDN, @[] matches the IP adress of any local interface.
116 domainlist local_domains = @ : \
119 ${if exists {/etc/exim4/locals}{lsearch;/etc/exim4/locals}}
121 domainlist virtual_domains = partial-lsearch;/etc/exim4/virtualdomains
123 domainlist submission_domains = ${if exists {/etc/exim4/submission-domains}{/etc/exim4/submission-domains}{}}
125 domainlist bsmtp_domains = ${if exists {/etc/exim4/bsmtp}{partial-lsearch;/etc/exim4/bsmtp}{}}
127 domainlist handled_domains = +local_domains : +virtual_domains : +bsmtp_domains
129 domainlist ourself_and_handled = $primary_hostname : +handled_domains
131 localpartlist local_only_users = lsearch;/etc/exim4/localusers
133 localpartlist postmasterish = postmaster : abuse : hostmaster
135 hostlist debianhosts = <; ; 127.0.0.1 ; ::1 ; /var/lib/misc/thishost/debianhosts
137 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
139 domainlist google_mxen = aspmx.l.google.com : gmail-smtp-in.l.google.com : \
140 *.aspmx.l.google.com : *.gmail-smtp-in.l.google.com
142 domainlist single_domain_mx = +google_mxen
143 domainlist ipv4_only_domain_mx = +google_mxen
145 <%- if @is_mailrelay -%>
146 # Domains we relay for; that is domains that aren't considered local but we
147 # accept mail for them.
148 domainlist mailhubdomains = lsearch;/etc/exim4/manualroute
151 tls_certificate = /etc/exim4/ssl/thishost.crt
152 tls_privatekey = /etc/exim4/ssl/thishost.key
153 tls_try_verify_hosts = *
154 tls_verify_certificates = /etc/exim4/ssl/ca.crt
155 tls_crl = /etc/exim4/ssl/ca.crl
157 # The setting below causes Exim to do a reverse DNS lookup on all incoming
158 # IP calls, in order to get the true host name. If you feel this is too
159 # expensive, you can specify the networks for which a lookup is done, or
160 # remove the setting entirely.
163 # If this option is set, then any process that is running as one of the
164 # listed users may pass a message to Exim and specify the sender's
165 # address using the "-f" command line option, without Exim's adding a
168 untrusted_set_sender = *
170 # Some spam scanners (*cough* irritated *cough*) want the Sender field
171 # to exist. Appease them by not actually adding a Sender field.
173 local_from_check = false
175 # Some operating systems use the "gecos" field in the system password file
176 # to hold other information in addition to users' real names. Exim looks up
177 # this field when it is creating "sender" and "from" headers. If these options
178 # are set, Exim uses "gecos_pattern" to parse the gecos field, and then
179 # expands "gecos_name" as the user's name. $1 etc refer to sub-fields matched
182 gecos_pattern = ^([^,:]*)
185 # Do *not* include the body of the original message in a bounce
186 # The combination of bounce_return_message and bounce_return_body
187 # allows us to return only the headers within a bounce
189 bounce_return_message = true
190 bounce_return_body = false
192 # This tells Exim to immediately discard error messages (ie double bounces).
193 ignore_bounce_errors_after = 0s
195 timeout_frozen_after=14d
197 message_size_limit = 100M
199 smtp_accept_max_per_host = ${if match_ip {$sender_host_address}{+debianhosts}{0}{7}}
201 smtp_accept_max = 300
202 smtp_accept_queue = 200
203 smtp_accept_queue_per_connection = 50
204 smtp_accept_reserve = 25
207 smtp_accept_queue = 20
208 smtp_accept_queue_per_connection = 10
209 smtp_accept_reserve = 5
211 smtp_reserve_hosts = +debianhosts
213 split_spool_directory = true
214 check_spool_inodes = 200
215 check_spool_space = 20M
220 message_body_visible = 5000
222 deliver_queue_load_max = 50
224 smtp_load_reserve = 20
227 <%- if scope.lookupvar('::processorcount').to_s != 'undefined' -%>
228 deliver_queue_load_max = <%= [scope.lookupvar('::processorcount').to_i,2].max * 5 %>
229 queue_only_load = <%= [scope.lookupvar('::processorcount').to_i,2].max * 4 %>
231 deliver_queue_load_max = 10
235 queue_list_requires_admin = false
237 <%- if has_variable?("clamd") && @clamd -%>
238 av_scanner = clamd:/var/run/clamav/clamd.ctl
243 out = "daemon_smtp_ports = "
245 if @mail_port # if we have an overridden mail_port
254 ports << @smarthost_port
257 out += ports.uniq.sort.join(" : ")
262 remote_sort_domains = *.debian.org:*.debian.net
264 pipelining_advertise_hosts = !*
265 tls_advertise_hosts = *
266 smtp_enforce_sync = true
273 +queue_time_overall \
275 +received_recipients \
276 +sender_on_delivery \
277 +return_path_on_delivery \
281 +smtp_incomplete_transaction \
287 received_header_text = Received: ${if def:sender_rcvhost {from $sender_rcvhost\n\t}\
288 {${if def:sender_ident {from ${quote_local_part:$sender_ident} }}${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}\
289 ${if and {{eq {$tls_certificate_verified}{1}}{def:tls_peerdn}}{from $tls_peerdn (verified)\n\t}}\
290 by $primary_hostname ${if def:received_protocol {with $received_protocol}} ${if def:tls_cipher {($tls_cipher)\n\t}}\
291 (Exim $version_number)\n\t\
292 ${if def:sender_address {(envelope-from <$sender_address>)\n\t}}\
293 id $message_exim_id${if def:received_for {\n\tfor $received_for}}
297 MAX_SCAN_SIZE = 256000
298 VDOMAINDATA = ${lookup{$domain}partial-lsearch{/etc/exim4/virtualdomains}{$value}}
299 VSENDERDOMAINDATA = ${lookup{$sender_address_domain}partial-lsearch{/etc/exim4/virtualdomains}{$value}}
300 WHITELIST = ${if match_domain{$domain}{+virtual_domains}\
301 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/whitelist}}}\
302 {${lookup{$local_part}lsearch{${extract{directory}{VDOMAINDATA}{${value}/whitelist}}}{$value}{}}}{}}}\
303 {/etc/exim4/whitelist} } : \
304 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-whitelist}{$value}{}}
305 GREYLIST_LOCAL_PARTS = ${if match_domain{$domain}{+virtual_domains}\
306 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}\
307 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}{$local_part}{}}}{}}}\
308 {${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}}}} : \
309 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}}
310 # Users from LDAP can decide whether to subscribe to default filtering.
311 # If a user has not explicitly disabled the option, the assumption is in
312 # favour of filtering.
313 HAS_DEFAULT_OPTIONS = ${if and {\
314 {eq{${lookup{$local_part}dbmnz{/var/lib/misc/$primary_hostname/default-mail-options.db}{$value}{TRUE}}}{TRUE}}\
315 {exists{${extract{directory}{VDOMAINDATA}{${value}/mail-forward.db}}}}\
316 {! eq {${lookup{$local_part}dbmnz{${extract{directory}{VDOMAINDATA}{${value}/mail-forward.db}}}}}{}}\
318 <%- if @is_rtmaster -%>
319 # This subject rewrite is embedded in double-quoted strings. As such, some of
320 # the items need more escaping than usual, otherwise \N becomes simply "N" and
321 # the following "\[" a literal "[".
322 # Note that the lack of space in "Subject:${" is intentional, as the raw Subject
323 # header will include the leading space, if present.
324 RT_SUBJECT = Subject:${if and {{first_delivery}{match {${sg {$rh_Subject:}{\\n([ \\t])}{ }}}{\\N(?i)(.*?)\\[?debian rt\\]?[:\\t ]*(.*)\\N}}}{$1$2}{$h_subject:}}
325 RT_QUEUE_MAP = /srv/rt.debian.org/mail/rt_queue_map
331 ######################################################################
332 # ACL CONFIGURATION #
333 ######################################################################
337 # There are a few profiles that don't want much smtp time checking of
338 # mail. It's easier to track them in one place
340 accept condition = ${if eq {$acl_m_prf}{PopconMail}}
341 accept condition = ${if eq {$acl_m_prf}{BugsMail}}
346 # Determine the mail profile for this recipient.
347 # An empty string implies no match has been found.
349 warn set acl_m_rprf =
351 warn recipients = survey@popcon.debian.org
352 set acl_m_rprf = PopconMail
354 accept condition = ${if !eq {$acl_m_rprf}{}}
356 warn local_parts = +local_only_users
357 domains = +local_domains
358 hosts = !+debianhosts
359 set acl_m_rprf = localonly
361 <%- if @is_mailrelay -%>
362 warn local_parts = +local_only_users
363 domains = +mailhubdomains
364 hosts = !+debianhosts
365 set acl_m_rprf = localonly
368 accept condition = ${if !eq {$acl_m_rprf}{}}
370 <%- if @is_rtmaster -%>
371 warn domains = rt.debian.org
372 set acl_m_rprf = RTMail
374 accept condition = ${if !eq {$acl_m_rprf}{}}
377 <%- if @is_bugsmx -%>
378 warn domains = bugs.debian.org
379 set acl_m_rprf = BugsMail
381 accept condition = ${if !eq {$acl_m_rprf}{}}
384 <%- if @is_packagesmaster -%>
385 warn domains = packages.debian.org
386 set acl_m_rprf = PackagesMail
388 accept condition = ${if !eq {$acl_m_rprf}{}}
391 <%- if @is_packagesqamaster -%>
392 warn recipients = owner@packages.qa.debian.org : postmaster@packages.qa.debian.org
393 set acl_m_rprf = PTSOwner
395 accept condition = ${if !eq {$acl_m_rprf}{}}
398 domains = packages.qa.debian.org
399 condition = ${if match{$local_part}{\N^bounces+\N}}
400 set acl_m_rprf = PTSListBounce
402 accept condition = ${if !eq {$acl_m_rprf}{}}
404 warn domains = packages.qa.debian.org
405 set acl_m_rprf = PTSMail
407 accept condition = ${if !eq {$acl_m_rprf}{}}
410 warn recipients = change@db.debian.org : changes@db.debian.org : chpasswd@db.debian.org : ping@db.debian.org : recommend@nm.debian.org
411 set acl_m_rprf = DBSignedMail
413 accept condition = ${if !eq {$acl_m_rprf}{}}
415 warn domains = +virtual_domains
416 condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction}}}}
417 condition = ${if eq{${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction}}}{$value}{}}}{markup}}
418 set acl_m_rprf = markup
420 accept condition = ${if !eq {$acl_m_rprf}{}}
422 warn domains = +virtual_domains
423 condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction}}}}
424 condition = ${if eq{${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction}}}{$value}{}}}{blackhole}}
425 set acl_m_rprf = blackhole
427 accept condition = ${if !eq {$acl_m_rprf}{}}
429 warn domains = +virtual_domains
430 condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction.db}}}}
431 condition = ${if eq{${lookup{$local_part}dbmnz{${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction.db}}}{$value}{}}}{markup}}
432 set acl_m_rprf = markup
434 accept condition = ${if !eq {$acl_m_rprf}{}}
436 warn domains = +virtual_domains
437 condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction.db}}}}
438 condition = ${if eq{${lookup{$local_part}dbmnz{${extract{directory}{VDOMAINDATA}{${value}/contentinspectionaction.db}}}{$value}{}}}{blackhole}}
439 set acl_m_rprf = blackhole
441 accept condition = ${if !eq {$acl_m_rprf}{}}
443 warn domains = +local_domains
444 condition = ${if eq{${lookup{$local_part}dbmnz{/var/lib/misc/${primary_hostname}/mail-contentinspectionaction.db}{$value}{}}}{markup}}
445 set acl_m_rprf = markup
447 accept condition = ${if !eq {$acl_m_rprf}{}}
449 warn domains = +local_domains
450 condition = ${if eq{${lookup{$local_part}dbmnz{/var/lib/misc/${primary_hostname}/mail-contentinspectionaction.db}{$value}{}}}{blackhole}}
451 set acl_m_rprf = blackhole
453 accept condition = ${if !eq {$acl_m_rprf}{}}
455 warn set acl_m_rprf = normal
461 warn set acl_c_scr = 0
463 <%- if @is_mailrelay -%>
464 accept verify = certificate
467 <%- unless @use_smarthost -%>
468 # These are in HELO acl so that they are only run once. They increment a counter,
469 # so we don't want it to increment per rcpt to.
472 warn dnslists = list.dnswl.org&0.0.0.3
473 log_message = Hit on list.dnswl.org for $sender_host_address
474 set acl_c_scr = ${eval:$acl_c_scr-30}
477 warn dnslists = list.dnswl.org&0.0.0.2
478 log_message = Hit on list.dnswl.org for $sender_host_address
479 set acl_c_scr = ${eval:$acl_c_scr-20}
481 # any form of listing
482 warn dnslists = list.dnswl.org
483 log_message = Hit on list.dnswl.org for $sender_host_address
484 set acl_c_scr = ${eval:$acl_c_scr-10}
486 warn condition = ${if isip {$sender_helo_name}}
487 log_message = remote host used IP address in HELO/EHLO greeting
488 set acl_c_scr = ${eval:$acl_c_scr+20}
490 warn !hosts = +debianhosts
491 condition = ${if eq{$host_lookup_failed}{1}}
492 set acl_c_scr = ${eval:$acl_c_scr+20}
494 # HELO looks like a dynamic address (with RDNS match)
495 warn !hosts = +debianhosts
496 condition = ${if eq{$host_lookup_failed}{0}}
497 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}}
498 set acl_c_scr = ${eval:$acl_c_scr+20}
500 # HELO looks like a dynamic address
501 warn !hosts = +debianhosts
502 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}}
503 set acl_c_scr = ${eval:$acl_c_scr+20}
505 # mail from a dynamic IP address range
506 warn !hosts = +debianhosts
507 dnslists = dul.dnsbl.sorbs.net
508 set acl_c_scr = ${eval:$acl_c_scr+15}
510 # If the sender's helo name is empty, the message will be rejected later
511 # because the helo is empty. If the rDNS lookup failed, we are already
512 # going to greylist them, so no sense worrying about it here. Finally,
513 # if rDNS does not match helo name (both lower cased first), greylist.
515 warn !hosts = +debianhosts
516 condition = ${if !eq {$host_lookup_failed}{1}}
517 condition = ${if def:sender_helo_name}
518 condition = ${if !eq {${lc:$sender_helo_name}}{${lc:$sender_host_name}}}
519 log_message = HELO doesn't match rDNS
520 set acl_c_scr = ${eval:$acl_c_scr+8}
523 # matches 098325879 - looks fishy
525 warn condition = ${if and { \
526 { !match{$sender_helo_name}{\N^\[.+\]$\N} } \
527 { !match{$sender_helo_name}{\N^(?i)((?=[^-])[a-z0-9-]*[a-z0-9]\.)+[a-z]{2,6}$\N} } \
530 log_message = non-FQDN HELO
531 set acl_c_scr = ${eval:$acl_c_scr+12}
533 # Matches DOMAIN99.com - looks bad
535 warn condition = ${if match {$sender_helo_name}{\N^[A-Z]+[A-Z0-9\-]+\.[A-Za-z0-9]+$\N}}
536 log_message = SHOUTING HELO
537 set acl_c_scr = ${eval:$acl_c_scr+7}
539 # Random HELO (run of 7 consonants) (constructed by viruses). We purposefully
540 # skip matching on machines named .*smtp.*, since that's 4 already. This is a fairly
541 # naive test, so it's not worth much
543 warn condition = ${if !match {${lc:$sender_helo_name}}{smtp}}
544 condition = ${if match {${lc:$sender_helo_name}}{\N^[a-z0-9]+\.[a-z]+$\N}}
545 condition = ${if match {${lc:$sender_helo_name}}{\N.*[bcdfghjklmnpqrstvwxz]{7,}.*\.[a-z]+$\N}}
546 log_message = random HELO
547 set acl_c_scr = ${eval:$acl_c_scr+5}
550 drop !hosts = +debianhosts
551 log_message = mail from non-d.o host
552 message = Interesting. I doubt that should have happened.
555 # Implicit, but simpler to just say it
558 #!!# ACL that is used after the RCPT command on the submission port
561 accept hosts = +debianhosts
563 <%- if @is_mailrelay -%>
564 accept verify = certificate
567 # Defer after too many bad RCPT TO's. Legit MTAs will retry later.
568 # This is a rough pass at preventing address harvesting or other mail blasts.
570 defer log_message = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count
571 message = Too many bad recipients, try again later
572 condition = ${if > {${eval:$rcpt_fail_count}}{3}}
575 ratelimit = 5 / 60m / per_rcpt / $sender_host_address
576 !hosts = +debianhosts
577 message = sorry, only 5 reports per hour for submission
579 accept domains = +local_domains
584 <%- if @is_mailrelay -%>
585 accept domains = +mailhubdomains
587 verify = recipient/callout=30s,defer_ok,use_sender,no_cache
590 accept domains = +submission_domains
594 deny message = relay not permitted
596 #!!# ACL that is used after the RCPT command
599 <%- if @is_mailrelay -%>
600 accept verify = certificate
603 accept hosts = <; ::1 ; 127.0.0.1 ; @
604 warn acl = acl_getprofile
605 condition = ${if eq{$acl_m_prf}{}}
606 set acl_m_prf = $acl_m_rprf
608 defer condition = ${if !eq{$acl_m_prf}{$acl_m_rprf}}
609 message = Different profile, please retry
610 log_message = Only one profile at a time, please
612 warn set acl_m_rdefopt = ${if bool_lax{HAS_DEFAULT_OPTIONS}}
614 warn condition = ${if eq{$acl_m_defopt}{}}
615 set acl_m_defopt = $acl_m_rdefopt
617 defer condition = ${if !eq{$acl_m_defopt}{$acl_m_rdefopt}}
618 message = Different profile, please retry
619 log_message = Only one default options profile at a time, please
621 # Set a flag to indicate whether the current recipient
622 # has explicitly requested greylisting
623 warn set acl_m_grey_recip = 0
625 warn local_parts = GREYLIST_LOCAL_PARTS
626 domains = +handled_domains
627 set acl_m_grey_recip = 1
629 # Defer after too many bad RCPT TO's. Legit MTAs will retry later.
630 # This is a rough pass at preventing address harvesting or other mail blasts.
632 defer log_message = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count
633 !acl = acl_spamlovers
634 message = Too many bad recipients, try again later
635 !hosts = +debianhosts
636 condition = ${if > {${eval:$rcpt_fail_count}}{3}}
638 # Dump spambots that are so stupid they say helo as our IP address
640 drop !hosts = +debianhosts
641 !acl = acl_spamlovers
642 condition = ${if eq {$sender_helo_name}{$interface_address}}
643 message = HELO mismatch Forged HELO for ($sender_helo_name)
645 # Also for spambots that say helo as us or one of our domains
647 drop !hosts = +debianhosts
648 !acl = acl_spamlovers
649 condition = ${if match_domain{$sender_helo_name}{+ourself_and_handled}}
650 condition = ${if !match{$sender_host_name}{${rxquote:$sender_helo_name}\N$\N}}
651 message = HELO mismatch Forged HELO for ($sender_helo_name)
653 # This logic gives you a list of commonly forged domains in helo to reject against
655 warn set acl_m_frg = ${lookup{$sender_helo_name} \
656 nwildlsearch{/etc/exim4/helo-check} \
657 {${if eq{$value}{}{$sender_helo_name}{$value}}}{}}
659 # This is a failsafe in case DNS fails - we defer instead of hard reject if they
660 # say helo as a name in the list but we can't look them up
662 defer !hosts = +debianhosts
663 !acl = acl_spamlovers
664 condition = ${if !eq{$acl_m_frg}{}}
665 condition = ${if eq{$sender_host_name}{}}
666 condition = ${if !eq{$host_lookup_failed}{1}}
667 message = Access temporarily denied. Resolve failed PTR for $sender_host_address
669 # If DNS works, go ahead and reject them
671 drop !hosts = +debianhosts
672 !acl = acl_spamlovers
673 condition = ${if and { {!eq{$acl_m_frg}{}}{!match{$sender_host_name}{${rxquote:$acl_m_frg}\N$\N}}}}
674 message = HELO mismatch Forged HELO for ($sender_helo_name)
676 # disabled accounts don't even get local mail.
677 deny domains = +virtual_domains
678 condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/mail-disable}}}\
679 {${lookup{${extract{1}{-}{$local_part}}}lsearch{${extract{directory}{VDOMAINDATA}{${value}/mail-disable}}}{true}{false}}}\
681 message = ${lookup{${extract{1}{-}{$local_part}}}lsearch{${extract{directory}{VDOMAINDATA}{${value}/mail-disable}}}{$value}}
683 deny local_parts = lsearch;/var/lib/misc/$primary_hostname/mail-disable
684 domains = +local_domains
685 message = ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-disable}{$value}}
687 deny domains = +virtual_domains
688 local_parts = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/localonly}}}\
689 {${extract{directory}{VDOMAINDATA}{${value}/localonly}}}\
691 hosts = !+debianhosts
692 message = mail for <$local_part@$domain> only accepted from debian.org machines
694 # Accept if the source is local SMTP (i.e. not over TCP/IP).
695 # We do this by testing for an empty sending host field.
698 deny domains = +handled_domains
699 local_parts = ^[.] : ^.*[@%!/|]
701 deny domains = !+handled_domains
702 local_parts = ^[./|] : ^.*[@%!] : ^.*/\\.\\./
704 deny condition = ${lookup{$sender_address_local_part}lsearch{/etc/exim4/localusers}{true}}
705 sender_domains= +local_domains
706 hosts = !+debianhosts
707 message = mail from <$sender_address> not allowed externally
709 deny sender_domains= +virtual_domains
710 condition = ${if exists {${extract{directory}{VSENDERDOMAINDATA}{${value}/localusers}}}}
711 condition = ${lookup{$sender_address_local_part}lsearch{${extract{directory}{VSENDERDOMAINDATA}{${value}/localusers}}}{true}}
712 hosts = !+debianhosts
713 message = mail from <$sender_address> not allowed externally
715 deny sender_domains= +virtual_domains
716 condition = ${if exists {${extract{directory}{VSENDERDOMAINDATA}{${value}/neversenders}}}}
717 condition = ${lookup{$sender_address_local_part}lsearch{${extract{directory}{VSENDERDOMAINDATA}{${value}/neversenders}}}{true}}
718 message = no mail should ever come from <$sender_address>
720 deny domains = +virtual_domains
722 condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/neversenders}}}}
723 condition = ${lookup{$local_part}lsearch{${extract{directory}{VDOMAINDATA}{${value}/neversenders}}}{true}}
724 message = <$local_part@$domain> does not send mail; rejecting bogus NDR
726 warn condition = ${if eq{$acl_m_prf}{localonly}}
727 set acl_m_lrc = ${if eq{$acl_m_lrc}{}{$local_part@$domain}{$acl_m_lrc, $local_part@$domain}}
729 <%- if @is_packagesmaster -%>
730 warn condition = ${if eq {$acl_m_prf}{PackagesMail}}
731 condition = ${if eq {$sender_address}{$local_part@$domain}}
732 message = X-Packages-FromTo-Same: yes
735 deny condition = ${if !eq {$acl_m_prf}{PopconMail}}
738 warn !hosts = +debianhosts
739 condition = ${if !eq {$acl_m_prf}{PopconMail}}
740 condition = ${if >{${eval:$acl_c_scr+0}}{0}}
741 ratelimit = 10 / 60m / per_rcpt / strict / $sender_host_address
742 log_message = Sender rate $sender_rate / $sender_rate_period (limit: $sender_rate_limit)
744 defer !hosts = +debianhosts
745 condition = ${if !eq {$acl_m_prf}{PopconMail}}
746 condition = ${if >{${eval:$acl_c_scr+0}}{0}}
747 ratelimit = 10 / 60m / per_rcpt / $sender_host_address
748 message = slow down (no reverse dns, mismatched ehlo, dialup, or in blacklists)
750 <%- if has_variable?("policydweight") && @policydweight -%>
751 # Check with policyd-weight
752 warn !hosts = +debianhosts
753 condition = ${if !eq {$acl_m_prf}{PopconMail}}
754 set acl_m_pw = ${readsocket{inet:127.0.0.1:12525}\
755 {request=smtpd_access_policy\n\
756 protocol_state=RCPT\n\
757 protocol_name=${uc:$received_protocol}\n\
758 helo_name=$sender_helo_name\n\
759 queue_id=$message_exim_id\n\
760 sender=$sender_address\n\
761 recipient=$local_part@$domain\n\
762 recipient_count=$rcpt_count\n\
763 client_address=$sender_host_address\n\
764 client_name=$sender_host_name\n\
765 reverse_client_name=$sender_host_name\n\
766 instance=$sender_host_address.$sender_address.$sender_helo_name\n\n}\
767 {20s}{\n}{socket failure}}
769 # Defer on socket error
770 defer !hosts = +debianhosts
771 condition = ${if !eq {$acl_m_prf}{PopconMail}}
772 condition = ${if eq{$acl_m_pw}{socket failure}}
773 message = Cannot connect to policyd-weight. Please try again later.
775 # Set proposed action to $acl_m_act and message to $acl_m_mes
776 warn !hosts = +debianhosts
777 condition = ${if !eq {$acl_m_prf}{PopconMail}}
778 set acl_m_mes = ${extract{action}{$acl_m_pw}}
779 set acl_m_act = ${sg{$acl_m_pw}{\Naction=[^ ]+ (.*)\n\n\N}{\$1}}
781 # Add X-policyd-weight header line to message
782 warn !hosts = +debianhosts
783 condition = ${if !eq {$acl_m_prf}{PopconMail}}
785 condition = ${if eq{$acl_m_act}{PREPEND}}
787 # Write log message, if policyd-weight can't run checks
788 warn !hosts = +debianhosts
789 condition = ${if !eq {$acl_m_prf}{PopconMail}}
790 log_message = policyd-weight message: $acl_m_mes
791 condition = ${if eq{$acl_m_act}{DUNNO}}
793 # Deny mails which policyd-weight thinks are spam
794 deny !hosts = +debianhosts
795 condition = ${if !eq {$acl_m_prf}{PopconMail}}
796 message = policyd-weight said: $acl_m_mes
797 condition = ${if eq{$acl_m_act}{550}}
799 # Defer messages when policyd-weight suggests so.
800 defer !hosts = +debianhosts
801 condition = ${if !eq {$acl_m_prf}{PopconMail}}
802 message = policyd-weight said: $acl_m_mes
803 condition = ${if eq{$acl_m_act}{450}}
806 <%- if @is_rtmaster -%>
807 warn condition = ${if eq{$acl_m_prf}{RTMail}}
808 set acl_m12 = ${if def:acl_m12 {$acl_m12} {${if or{{match{$local_part}{\N[^+]+\+\d+\N}}{match{$local_part}{\N[^+]+\+new\N}}} {RTMailRecipientHasSubaddress}}}}
811 <%- if has_variable?("greylistd") && @greylistd -%>
813 message = $sender_host_address is not yet authorized to deliver mail from <$sender_address> to <$local_part@$domain>.
814 log_message = greylisted.
815 condition = ${if or { \
816 {eq{$acl_m_grey_recip}{1}} \
817 {bool_lax{HAS_DEFAULT_OPTIONS}} \
821 !hosts = : +debianhosts : WHITELIST : \
822 ${if exists {/etc/greylistd/whitelist-hosts}\
823 {/etc/greylistd/whitelist-hosts}{}} : \
824 ${if exists {/var/lib/greylistd/whitelist-hosts}\
825 {/var/lib/greylistd/whitelist-hosts}{}}
826 !dnslists = list.dnswl.org&0.0.0.3
827 condition = ${if !eq {$acl_m_prf}{PopconMail}}
829 domains = +handled_domains
830 condition = ${readsocket{/var/run/greylistd/socket}\
832 $sender_host_address \
834 $local_part@$domain}\
837 <%- elsif has_variable?("postgrey") && @postgrey -%>
838 # next three are greylisting, inspired by http://www.bebt.de/blog/debian/archives/2006/07/30/T06_12_27/index.html
839 # this adds acl_m_grey if there isn't one (so unique per message)
842 !hosts = : +debianhosts : WHITELIST
843 !dnslists = list.dnswl.org&0.0.0.3
844 condition = ${if !eq {$acl_m_prf}{PopconMail}}
845 condition = ${if ! def:acl_m_grey}
846 set acl_m_grey = $pid.$tod_epoch.$sender_host_port
848 # and defers the message if postgrey thinks it should be defered ...
851 !hosts = : +debianhosts : WHITELIST
852 !dnslists = list.dnswl.org&0.0.0.3
853 condition = ${if !eq {$acl_m_prf}{PopconMail}}
855 domains = +handled_domains
856 condition = ${if or { \
857 {eq{$acl_m_grey_recip}{1}} \
858 {bool_lax{HAS_DEFAULT_OPTIONS}} \
861 set acl_m_pgr = request=smtpd_access_policy\n\
862 protocol_state=RCPT\n\
863 protocol_name=${uc:$received_protocol}\n\
864 instance=${acl_m_grey}\n\
865 helo_name=${sender_helo_name}\n\
866 client_address=${sender_host_address}\n\
867 client_name=${sender_host_name}\n\
868 sender=${sender_address}\n\
869 recipient=$local_part@$domain\n\n
870 set acl_m_pgr = ${sg{\
871 ${readsocket{/var/run/postgrey/socket}{$acl_m_pgr}\
872 {5s}{}{action=DUNNO}}\
874 message = ${sg{$acl_m_pgr}{\N^\w+\s*\N}{}}
875 log_message = greylisted.
876 condition = ${if eq{${uc:${substr{0}{5}{$acl_m_pgr}}}}{DEFER}}
878 # ... or adds a header with information about how long the delay was
881 !hosts = : +debianhosts : WHITELIST
882 !dnslists = list.dnswl.org&0.0.0.3
883 condition = ${if !eq {$acl_m_prf}{PopconMail}}
885 domains = +handled_domains
886 condition = ${if or { \
887 {eq{$acl_m_grey_recip}{1}} \
888 {bool_lax{HAS_DEFAULT_OPTIONS}} \
891 condition = ${if eq{${uc:${substr_0_7:$acl_m_pgr}}}{PREPEND}}
892 message = ${sg{$acl_m_pgr}{\N^\w+\s*\N}{}}
895 deny hosts = ${if exists{/etc/exim4/host_blacklist}{/etc/exim4/host_blacklist}{}}
896 message = I'm terribly sorry, but it seems you have been blacklisted
897 log_message = blacklisted IP
899 deny log_message = <$sender_address> is blacklisted
900 senders = ${if exists{/etc/exim4/blacklist}{/etc/exim4/blacklist}{}}
901 message = We have blacklisted <$sender_address>. Please stop mailing us
903 accept local_parts = +postmasterish
904 domains = +virtual_domains : +bsmtp_domains
906 <%- unless @use_smarthost -%>
907 deny message = host $sender_host_address is listed in $dnslist_domain ($dnslist_value); see $dnslist_text
908 dnslists = ${if match_domain{$domain}{+virtual_domains}\
909 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/rbllist}}}\
910 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/rbllist}}}{$value}{}}}{}}}\
911 {${lookup{$local_part}lsearch{/etc/exim4/rbllist}{$value}{}}}} : \
912 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-rbl}{$value}{}}
913 domains = +handled_domains
914 !hosts = +debianhosts : WHITELIST
916 deny message = host $sender_host_address is listed in $dnslist_domain ($dnslist_value); see $dnslist_text
917 dnslists = noserver.dnsbl.sorbs.net
918 domains = +handled_domains
919 !hosts = +debianhosts : WHITELIST
921 deny message = host $sender_host_address is listed in $dnslist_domain ($dnslist_value); see $dnslist_text
922 condition = ${if bool_lax{HAS_DEFAULT_OPTIONS}}
923 dnslists = relays.dnsbl.sorbs.net : xbl.spamhaus.org
924 domains = +handled_domains
925 !hosts = +debianhosts : WHITELIST
928 deny message = domain $sender_address_domain is listed in $dnslist_domain ($dnslist_value); see $dnslist_text
929 dnslists = ${if match_domain{$domain}{+virtual_domains}\
930 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/rhsbllist}}}\
931 {${expand:${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/rhsbllist}}}{$value}{}}}}{}}}\
932 {${expand:${lookup{$local_part}lsearch{/etc/exim4/rhsbllist}{$value}{}}}}} : \
933 ${expand:${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-rhsbl}{$value}{}}}
934 domains = +handled_domains
935 !hosts = +debianhosts : WHITELIST
937 deny message = domain $sender_address_domain is listed in $dnslist_domain ($dnslist_value); see $dnslist_text
938 dnslists = nomail.rhsbl.sorbs.net/$sender_address_domain
939 domains = +handled_domains
940 !hosts = +debianhosts : WHITELIST
942 deny message = domain $sender_address_domain is listed in $dnslist_domain ($dnslist_value); see $dnslist_text
943 condition = ${if bool_lax{HAS_DEFAULT_OPTIONS}}
944 dnslists = dbl.spamhaus.org/$sender_address_domain
945 domains = +handled_domains
946 !hosts = +debianhosts : WHITELIST
948 <%- unless @use_smarthost -%>
949 deny domains = +handled_domains
950 local_parts = ${if match_domain{$domain}{+virtual_domains}\
951 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/callout_users}}}\
952 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/callout_users}}}{$local_part}{}}}{}}}\
953 {${lookup{$local_part}lsearch{/etc/exim4/callout_users}{$local_part}{}}}} : \
954 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-callout}{$local_part}{}}
955 !hosts = +debianhosts : WHITELIST
956 !verify = sender/callout=90s,maxwait=300s
957 message = "Sender verification failed: $acl_verify_message"
960 <%- if @is_mailrelay -%>
961 accept domains = +mailhubdomains
963 verify = recipient/callout=30s,defer_ok,use_sender,no_cache
966 accept domains = +handled_domains
968 verify = recipient/defer_ok
970 accept hosts = +debianhosts
972 accept authenticated = *
974 deny message = relay not permitted
979 accept verify = certificate
980 accept hosts = +debianhosts
982 discard condition = ${if <{$message_size}{MAX_SCAN_SIZE}}
983 condition = ${if eq {$acl_m_prf}{blackhole}}
984 set acl_m_srb = ${perl{surblspamcheck}}
985 condition = ${if !eq{$acl_m_srb}{false}}
986 log_message = discarded surbl message for $recipients
988 deny condition = ${if <{$message_size}{MAX_SCAN_SIZE}}
989 condition = ${if !eq {$acl_m_prf}{markup}}
990 condition = ${if !eq {$acl_m_prf}{PopconMail}}
991 set acl_m_srb = ${perl{surblspamcheck}}
992 condition = ${if !eq{$acl_m_srb}{false}}
993 log_message = $acl_m_srb
996 warn condition = ${if <{$message_size}{MAX_SCAN_SIZE}}
997 condition = ${if eq {$acl_m_prf}{markup}}
998 set acl_m_srb = ${perl{surblspamcheck}}
999 condition = ${if !eq{$acl_m_srb}{false}}
1000 message = X-Surbl-Hit: $primary_hostname: $acl_m_srb
1002 # Dump MIME parts to disk. "default" creates sequentially-named files
1003 # in <spool_directory>/scan/<message_id>/ which should then be
1004 # automagically unlinked after processing.
1005 warn decode = default
1007 # Log some information about attachments for debugging
1008 warn log_message = MIME part [$mime_part_count] -> [${extract{-1}{.}{${lc:$mime_filename}}}] [$mime_content_type]
1014 deny condition = ${if eq{$acl_m_prf}{localonly}}
1015 message = mail for $acl_m_lrc is only accepted internally
1020 #!!# ACL that is used after the DATA command
1023 # Some people put from postmaster@something.debian.org in the From
1024 # header. Take their crack pipe away.
1025 drop condition = ${if match{${lc:$h_From:}}{\Npostmaster@([^.]+\.)?debian\.org\N}}
1027 <%- if @is_rtmaster -%>
1028 deny condition = ${if eq {$acl_m_prf}{RTMail}}
1029 condition = ${if and{{!match {${lc:$rh_Subject:}} {debian rt}} \
1030 {!match {${lc:$rh_Subject:]}} {\N\[rt.debian.org \N}} \
1031 {!match {$acl_m12}{RTMailRecipientHasSubaddress}}}}
1032 message = messages to the Request Tracker system require a subject tag or a subaddress
1035 <%- if @is_packagesqamaster -%>
1036 deny !hosts = +debianhosts
1037 condition = ${if eq {$acl_m_prf}{PTSMail}}
1038 condition = ${if !def:h_X-PTS-Approved:}
1039 message = messages to the PTS require an X-PTS-Approved header
1042 deny condition = ${if eq {$acl_m_prf}{DBSignedMail}}
1043 condition = ${if and {{!match {$message_body}{PGP MESSAGE}} \
1044 {!match {$message_body}{PGP SIGNED MESSAGE}} \
1045 {!match {$message_body}{PGP SIGNATURE}} \
1046 {!match {$header_content-type:}{multipart/signed}} \
1047 {!match {$header_content-type:}{pgp}} \
1050 message = Mail to this address needs to be PGP-signed
1052 accept verify = certificate
1053 accept hosts = +debianhosts
1055 deny condition = ${if !eq {$acl_m_prf}{PopconMail}}
1056 !verify = header_syntax
1057 message = Invalid header syntax: $acl_verify_message
1059 # RFC 822 and 2822 say that headers must be ASCII. This kinda emulates
1060 # postfix's strict_7bit_headers option, but only checks a few common problem
1061 # headers, as there doesn't appear to be an easy way to check them all.
1063 condition = ${if or {{match {$rh_Subject:}{[\200-\377]}}\
1064 {match {$rh_To:}{[\200-\377]}}\
1065 {match {$rh_From:}{[\200-\377]}}\
1066 {match {$rh_Cc:}{[\200-\377]}}}}
1067 condition = ${if !eq {$acl_m_prf}{PopconMail}}
1068 message = improper use of 8-bit data in message header: message rejected
1071 condition = ${if match {$rh_Subject:}{[^[:print:]]\{8\}}}
1072 condition = ${if !eq {$acl_m_prf}{PopconMail}}
1073 message = Your mailer is not RFC 2047 compliant: message rejected
1075 <%- if has_variable?("clamd") && @clamd -%>
1076 discard condition = ${if eq {$acl_m_prf}{blackhole}}
1077 malware = */defer_ok
1078 log_message = discarded malware message for $recipients
1080 deny condition = ${if !eq {$acl_m_prf}{markup}}
1081 condition = ${if !eq {$acl_m_prf}{PopconMail}}
1082 malware = */defer_ok
1083 message = malware detected: $malware_name: message rejected
1085 warn condition = ${if eq {$acl_m_prf}{markup}}
1086 malware = */defer_ok
1087 message = X-malware detected: $malware_name
1091 discard condition = ${if <{$message_size}{MAX_SCAN_SIZE}}
1092 condition = ${if eq {$acl_m_prf}{blackhole}}
1093 set acl_m_srb = ${perl{surblspamcheck}}
1094 condition = ${if !eq{$acl_m_srb}{false}}
1095 log_message = discarded surbl message for $recipients
1097 deny condition = ${if <{$message_size}{MAX_SCAN_SIZE}}
1098 condition = ${if !eq {$acl_m_prf}{markup}}
1099 condition = ${if !eq {$acl_m_prf}{PopconMail}}
1100 set acl_m_srb = ${perl{surblspamcheck}}
1101 condition = ${if !eq{$acl_m_srb}{false}}
1102 log_message = $acl_m_srb
1103 message = $acl_m_srb
1105 warn condition = ${if <{$message_size}{MAX_SCAN_SIZE}}
1106 condition = ${if eq {$acl_m_prf}{markup}}
1107 set acl_m_srb = ${perl{surblspamcheck}}
1108 condition = ${if !eq{$acl_m_srb}{false}}
1109 message = X-Surbl-Hit: $primary_hostname: $acl_m_srb
1112 # Check header_sender except for survey@popcon.d.o
1113 deny condition = ${if !eq{$acl_m_prf}{PopconMail}}
1114 !verify = header_sender
1115 message = No valid sender found in the From:, Sender: and Reply-to: headers
1117 <%- if @is_packagesmaster -%>
1118 deny message = Congratulations, you scored $spam_score points.
1119 log_message = spam: $spam_score points.
1120 condition = ${if eq {$acl_m_prf}{PackagesMail}}
1122 !verify = certificate
1123 !hosts = +debianhosts
1124 condition = ${if <{$message_size}{MAX_SCAN_SIZE}}
1125 spam = pkg_user : true
1126 condition = ${if >{$spam_score_int}{59}}
1133 ######################################################################
1134 # REWRITE CONFIGURATION #
1135 ######################################################################
1141 \N^buildd_(.*)@fasolo\.debian\.org$\N buildd_$1@buildd.debian.org T
1142 *@debian.org ${lookup{$1}dbmnz{/var/lib/misc/${primary_hostname}/mail-forward.db}{$value}fail} T
1143 *@people.debian.org ${lookup{$1}dbmnz{/var/lib/misc/${primary_hostname}/mail-forward.db}{$value}fail} T
1144 #*@${primary_hostname} "${if exists{/etc/exim4/email-addresses}{${lookup{$1}lsearch{/etc/exim4/email-addresses}{$value}fail}}fail}" fFs
1147 #!!#######################################################!!#
1148 #!!# Here follow routers created from the old routers, #!!#
1149 #!!# for handling non-local domains. #!!#
1150 #!!#######################################################!!#
1156 ######################################################################
1157 # ROUTERS CONFIGURATION #
1158 # Specifies how addresses are handled #
1159 ######################################################################
1160 # ORDER DOES MATTER #
1161 # An address is passed to each in turn until it is accepted. #
1162 ######################################################################
1164 <%- if @is_mailrelay -%>
1166 debug_print = "R: relay_manualroute for $local_part@$domain"
1167 driver = manualroute
1168 domains = +mailhubdomains
1169 transport = ${if forany{${lookup dnsdb{>: mxh=$domain}}}\
1170 {match_domain{$item}{+single_domain_mx}}\
1171 {remote_smtp_single_domain}{remote_smtp}\
1173 route_data = ${lookup{$domain}lsearch{/etc/exim4/manualroute}}
1174 require_files = /etc/exim4/manualroute
1178 debug_print = "R: bsmtp for $local_part@$domain"
1179 driver = manualroute
1180 domains = +bsmtp_domains
1181 require_files = /etc/exim4/bsmtp
1182 route_list = * ${extract{file}{\
1183 ${lookup{$domain}partial-lsearch{/etc/exim4/bsmtp}\
1187 # This router routes to remote hosts over SMTP by explicit IP address,
1188 # given as a "domain literal" in the form [nnn.nnn.nnn.nnn]. The RFCs
1189 # require this facility, which is why it is enabled by default in Exim.
1191 debug_print = "R: ipliteral for $local_part@$domain"
1193 domains = !+handled_domains
1194 transport = remote_smtp
1195 ignore_target_hosts = +reservedaddrs
1197 <%- if @use_smarthost -%>
1199 debug_print = "R: smarthost for $local_part@$domain"
1200 driver = manualroute
1201 domains = !+handled_domains
1202 transport = remote_smtp_smarthost
1203 route_list = * <%= @smarthost %>
1204 host_find_failed = defer
1205 same_domain_copy_routing = yes
1209 # This router routes to remote hosts over SMTP using a DNS lookup.
1210 # Ignore reserved network responses, including localhost.
1212 debug_print = "R: dnslookup for $local_part@$domain"
1214 domains = !+handled_domains
1215 transport = ${if forany{${lookup dnsdb{>: mxh=$domain}}}\
1216 {match_domain{$item}{+single_domain_mx}}\
1217 {remote_smtp_single_domain}{remote_smtp}\
1219 ignore_target_hosts = +reservedaddrs : \
1220 ${if forany{${lookup dnsdb{>: mxh=$domain}}}\
1221 {match_domain{$item}{+ipv4_only_domain_mx}}\
1227 debug_print = "R: postmasterish for $local_part@$domain"
1232 local_parts = +postmasterish
1233 domains = +virtual_domains : +bsmtp_domains
1234 data = debian-admin@debian.org
1235 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1237 # This router handles aliasing using a traditional /etc/aliases file.
1238 # If any of your aliases expand to pipes or files, you will need to set
1239 # up a user and a group for these deliveries to run under. You can do
1240 # this by uncommenting the "user" option below (changing the user name
1241 # as appropriate) and adding a "group" option if necessary.
1244 debug_print = "R: system_aliases for $local_part@$domain"
1248 data = ${lookup{$local_part}lsearch*{/etc/aliases}}
1249 domains = +local_domains
1250 file_transport = address_file
1251 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1252 pipe_transport = address_pipe
1253 retry_use_local_part
1255 # This router handles forwarding using traditional .forward files.
1256 # It also allows mail filtering when a forward file starts with the
1257 # string "# Exim filter": to disable filtering, uncomment the "filter"
1258 # option. The check_ancestor option means that if the forward file
1259 # generates an address that is an ancestor of the current one, the
1260 # current one gets passed on instead. This covers the case where A is
1261 # aliased to B and B has a .forward file pointing to A.
1263 # For standard Debian setup of one group per user, it is acceptable---normal
1264 # even---for .forward to be group writable. If you have everyone in one
1265 # group, you should comment out the "modemask" line. Without it, the Exim
1266 # default of 022 will apply, which is probably what you want.
1269 debug_print = "R: userforward for $local_part${local_part_suffix}@$domain"
1274 directory_transport = address_directory
1275 domains = +local_domains
1276 # filter - I have disabled filtering to force users to use .forward-foo files
1277 # or procmail. This will make it easier to move mailers in the future
1279 # This bit does the qmailesque extension names, foo-bar@ is .forward-foo it
1280 # also checks if the .forward-bar exists, if not then it uses
1281 # .forward-default instead.
1282 file = $home/.forward\
1283 ${if eq{}{$local_part_suffix}{}{\
1284 ${if exists {${home}/.forward${local_part_suffix}} \
1285 {${local_part_suffix}}{-default}}\
1288 file_transport = address_file
1289 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1290 local_part_suffix = -*
1291 local_part_suffix_optional
1293 pipe_transport = address_pipe
1294 reply_transport = address_reply
1295 require_files = $home
1296 router_home_directory = ${lookup passwd{$local_part}{${extract{5}{:}{$value}}}fail}
1299 # This is a sendmailesque alias file lookup
1301 debug_print = "R: virt_aliases for $local_part@$domain"
1305 data = ${if exists{\
1306 ${extract{directory}{VDOMAINDATA}{${value}/aliases}}}\
1307 {${lookup{$local_part}lsearch*{\
1308 ${extract{directory}{VDOMAINDATA}{$value/aliases}}\
1310 directory_transport = address_directory
1311 domains = +virtual_domains
1312 file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}}
1313 cannot_route_message = Unknown user
1314 group = ${extract{group}{VDOMAINDATA}}
1315 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1316 pipe_transport = address_pipe
1317 qualify_preserve_domain
1318 retry_use_local_part
1319 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1320 transport_home_directory = ${extract{directory}{VDOMAINDATA}}
1321 user = ${extract{user}{VDOMAINDATA}}
1323 # No direct match, so try doing a regex match if there's an
1326 debug_print = "R: virt_aliases_regex for $local_part$local_part_suffix@$domain"
1330 data = ${if exists{\
1331 ${extract{directory}{VDOMAINDATA}{${value}/aliases.regex}}}\
1332 {${lookup{$local_part}nwildlsearch*{\
1333 ${extract{directory}{VDOMAINDATA}{$value/aliases.regex}}\
1335 directory_transport = address_directory
1336 domains = +virtual_domains
1337 file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}}
1338 cannot_route_message = Unknown user
1339 group = ${extract{group}{VDOMAINDATA}}
1340 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1341 pipe_transport = address_pipe
1342 qualify_preserve_domain
1343 retry_use_local_part
1344 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1345 transport_home_directory = ${extract{directory}{VDOMAINDATA}}
1346 user = ${extract{user}{VDOMAINDATA}}
1349 debug_print = "R: userforward for $local_part${local_part_suffix}@$domain"
1353 directory_transport = address_directory
1354 domains = +local_domains
1355 # filter - I have disabled filtering to force users to use .forward-foo files
1356 # or procmail. This will make it easier to move mailers in the future
1358 # This bit does the qmailesque extension names, foo-bar@ is .forward-foo it
1359 # also checks if the .forward-bar exists, if not then it uses
1360 # .forward-default instead.
1361 file = $home/.forward\
1362 ${if eq{}{$local_part_suffix}{}{\
1363 ${if exists {${home}/.forward${local_part_suffix}} \
1364 {${local_part_suffix}}{-default}}\
1367 file_transport = address_file
1368 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1369 local_part_suffix = -*
1370 local_part_suffix_optional
1372 pipe_transport = address_pipe
1373 reply_transport = address_reply
1374 require_files = $home
1377 # This delivers to procmail
1379 debug_print = "R: procmail for $local_part@$domain"
1382 domains = +local_domains
1383 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1384 local_part_suffix = -*
1385 local_part_suffix_optional
1388 require_files = $local_part:$home/.procmailrc
1389 transport = procmail_pipe
1390 transport_current_directory = $home
1392 # This driver delivers to the LDAP generated alias file.
1394 debug_print = "R: ldap_aliases for $local_part@$domain"
1398 data = ${if exists{/var/lib/misc/$primary_hostname/user-forward.db}\
1399 {${lookup{$local_part}dbmnz\
1400 {/var/lib/misc/$primary_hostname/user-forward.db}}}}
1401 domains = +local_domains
1402 file_transport = address_file
1403 local_part_suffix = -*
1404 local_part_suffix_optional
1405 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1406 pipe_transport = address_pipe
1407 retry_use_local_part
1409 # This director matches local user mailboxes.
1411 debug_print = "R: localuser for $local_part@$domain"
1414 domains = +local_domains
1415 local_part_suffix = -*
1416 local_part_suffix_optional
1417 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1418 # Disable if the user has never logged in
1419 require_files = $home
1420 transport = local_delivery
1423 # Now we begin the Virtual Domain configuration
1424 # Everything before here should apply only to the local domains with a
1427 <%- if @is_packagesmaster -%>
1428 # This router delivers for packages.d.o
1430 debug_print = "R: packages for $local_part@$domain"
1432 file_transport = address_file
1433 pipe_transport = address_pipe
1434 domains = packages.debian.org
1435 require_files = /srv/packages.debian.org/conf/maintainer
1436 data = ${lookup{$local_part}cdb{/srv/packages.debian.org/conf/maintainer.cdb}}
1437 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1438 transport_home_directory = /srv/packages.debian.org/mail
1439 transport_current_directory = /srv/packages.debian.org/mail
1441 retry_use_local_part
1445 <%- if @is_rtmaster -%>
1446 # This router delivers for rt.d.o
1447 rt_force_new_verbose:
1448 debug_print = "R: rt for $local_part+new@$domain"
1450 domains = rt.debian.org
1451 require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP
1452 local_parts = ${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}}
1453 local_part_suffix = +new
1454 pipe_transport = rt_pipe
1455 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}}"
1456 headers_remove = Subject
1457 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nRT_SUBJECT"
1459 # FIXME: figure out how to generalize this approach so that all of the following would work
1460 # - rt+NNNN@rt.debian.org : attach correspondence to ticket (verbose)
1461 # - rt+NNNN-quiesce@rt.debian.org : attach correspondence to ticket (quiesce)
1462 # - rt+NNNN-<action>@rt.debian.org : attach correspondence to ticket (some action)
1463 # requires modification to custom condition in 'scrips'
1464 rt_force_new_quiesce:
1465 debug_print = "R: rt for $local_part+new-quiesce@$domain"
1467 domains = rt.debian.org
1468 require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP
1469 local_parts = ${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}}
1470 local_part_suffix = +new-quiesce
1471 pipe_transport = rt_pipe
1472 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}}"
1473 headers_remove = Subject
1474 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nX-RT-Mode: quiesce\nRT_SUBJECT"
1477 debug_print = "R: rt for $local_part@$domain"
1479 domains = rt.debian.org
1480 require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP
1481 local_parts = ${lookup{${sg{$local_part}{-(comment|done)}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}}
1482 local_part_suffix = +*
1483 local_part_suffix_optional
1484 pipe_transport = rt_pipe
1485 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}}}}"
1486 headers_remove = Subject
1487 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nRT_SUBJECT"
1490 # Exim fails the router if it can't change to the user/group for delivery
1491 # during verification. So we have to separate the cases of verifying
1492 # the virts, and delivering to them. blah.
1495 debug_print = "R: virt_direct for $local_part@$domain"
1501 directory_transport = address_directory
1502 domains = +virtual_domains
1503 <%- if @is_trackermaster -%>
1504 local_part_suffix = +*
1506 local_part_suffix = -*
1508 local_part_suffix_optional
1509 file = $home/.forward-\
1510 ${if exists {${home}/.forward-${local_part}}{${local_part}}\
1512 file_transport = address_file
1513 pipe_transport = address_pipe
1514 reply_transport = address_reply
1515 retry_use_local_part
1516 router_home_directory = ${extract{directory}{VDOMAINDATA}}
1517 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1520 # This is a qmailesque deliver into a directory of .forward files
1522 debug_print = "R: virt_direct for $local_part@$domain"
1528 directory_transport = address_directory
1529 domains = +virtual_domains
1530 file = $home/.forward-\
1531 ${if exists {${home}/.forward-${local_part}}{${local_part}}\
1533 file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}}
1534 group = ${extract{group}{VDOMAINDATA}}
1535 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1537 <%- if @is_trackermaster -%>
1538 local_part_suffix = +*
1540 local_part_suffix = -*
1542 local_part_suffix_optional
1543 pipe_transport = address_pipe
1544 reply_transport = address_reply
1545 retry_use_local_part
1546 router_home_directory = ${extract{directory}{VDOMAINDATA}}
1547 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1549 user = ${extract{user}{VDOMAINDATA}}
1550 #debug_print = .forward-${if exists {${home}/.forward-${local_part}} {${local_part}} {default}}
1552 # This router delivers to the LDAP generated mail-forward file.
1553 # It's only really useful for debian.org
1555 debug_print = "R: virt_users for $local_part@$domain"
1559 router_home_directory = ${extract{directory}{VDOMAINDATA}}
1560 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1561 user = ${extract{user}{VDOMAINDATA}}
1562 group = ${extract{group}{VDOMAINDATA}}
1563 # Manually construct the forwarding address, preserving the
1564 # local_part_suffix if the remote host is master.
1565 data = ${if and {{exists{${extract{directory}{VDOMAINDATA}{${value}/mail-forward.db}}}}\
1566 {! eq {${lookup{$local_part}dbmnz\
1567 {${extract{directory}{VDOMAINDATA}{${value}/mail-forward.db}}}}}\
1569 {${local_part:${lookup{$local_part}dbmnz\
1570 {${extract{directory}{VDOMAINDATA}{${value}/mail-forward.db}}}}}\
1571 ${if eq {${domain:${lookup{$local_part}dbmnz\
1572 {${extract{directory}{VDOMAINDATA}{${value}/mail-forward.db}}}}}}{master.debian.org}{$local_part_suffix} {}}\
1574 ${domain:${lookup{$local_part}dbmnz\
1575 {${extract{directory}{VDOMAINDATA}{${value}/mail-forward.db}}}}}}}
1576 domains = +virtual_domains
1577 file_transport = address_file
1578 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1579 pipe_transport = address_pipe
1580 local_part_suffix = -*
1581 local_part_suffix_optional
1582 retry_use_local_part
1584 <%- if @is_bugsmx -%>
1585 # This router delivers for bugs.d.o
1587 debug_print = "R: bugs for $local_part@$domain"
1589 transport = bugs_pipe
1590 domains = bugs.debian.org
1591 cannot_route_message = Unknown or archived bug
1592 require_files = /srv/bugs.debian.org/mail/run-procmail
1594 local_parts = ${if match\
1596 {\N^(\d+)(\d{2})(?:-(?:(?:submit|maintonly|quiet|forwarded|done|close|request|submitter)|(?:unsubscribe|ignore|help|(?:sub(?:scribe|help|yes|approve|reject))|unsubyes|bounce|probe|approve|reject|setlistyes|setlistsilentyes).*))?$\N}\
1597 {${if exists{/srv/bugs.debian.org/spool/db-h/$2/$1$2.summary}\
1598 {$local_part}fail}}fail}
1600 ######################################################################
1601 # TRANSPORTS CONFIGURATION #
1602 ######################################################################
1603 # ORDER DOES NOT MATTER #
1604 # Only one appropriate transport is called for each delivery. #
1605 ######################################################################
1610 # This transport is used for local delivery to user mailboxes. On Debian
1611 # systems group mail is used so we can write to the /var/mail
1612 # directory. (The alternative, which most other unixes use, is to deliver
1613 # as the user's own group, into a sticky-bitted directory)
1615 debug_print = "T: local_delivery for $local_part@$domain"
1617 file = /var/mail/${local_part}
1620 no_mode_fail_narrower
1623 # This transport is used for handling pipe addresses generated by alias
1624 # or .forward files. It has a conventional name, since it is not actually
1625 # mentioned elsewhere in this configuration file. (A different name *can*
1626 # be specified via the "address_pipe_transport" option if you really want
1627 # to.) If the pipe generates any standard output, it is returned to the sender
1628 # of the message as a delivery error. Set return_fail_output instead if you
1629 # want this to happen only when the pipe fails to complete normally.
1632 debug_print = "T: address_pipe for $local_part@$domain"
1634 current_directory = ${home}
1635 environment = "EXTENSION=${substr_1:${local_part_suffix}}:\
1636 EXT=${substr_1:${local_part_suffix}}:\
1637 LOCAL=${local_part}${local_part_suffix}:\
1638 RECIPIENT=${local_part}${local_part_suffix}@${domain}"
1642 # This transport is used for handling file addresses generated by alias
1643 # or .forward files. It has a conventional name, since it is not actually
1644 # mentioned elsewhere in this configuration file.
1647 debug_print = "T: address_file for $local_part@$domain"
1652 debug_print = "T: address_file_group for $local_part@$domain"
1656 directory_mode = 0770
1657 mode_fail_narrower = false
1659 # This transport is used for handling file addresses generated by alias
1660 # or .forward files if the path ends in "/", which causes it to be treated
1661 # as a directory name rather than a file name. Each message is then delivered
1662 # to a unique file in the directory. If instead you want all such deliveries to
1663 # be in the "maildir" format that is used by some other mail software,
1664 # uncomment the final option below. If this is done, the directory specified
1665 # in the .forward or alias file is the base maildir directory.
1667 # Should you want to be able to specify either maildir or non-maildir
1668 # directory-style deliveries, then you must set up yet another transport,
1669 # called address_directory2. This is used if the path ends in "//" so should
1670 # be the one used for maildir, as the double slash suggests another level
1671 # of directory. In the absence of address_directory2, paths ending in //
1672 # are passed to address_directory.
1675 debug_print = "T: address_directory for $local_part@$domain"
1683 # This transport is used for handling autoreplies generated by the filtering
1684 # option of the forwardfile director. It has a conventional name, since it
1685 # is not actually mentioned elsewhere in this configuration file.
1687 debug_print = "T: address_reply for $local_part@$domain"
1690 # This transport is used for delivering messages over SMTP connections.
1693 debug_print = "T: remote_smtp for $local_part@$domain"
1695 connect_timeout = 15s
1696 delay_after_cutoff = false
1697 tls_certificate = /etc/exim4/ssl/thishost.crt
1698 tls_privatekey = /etc/exim4/ssl/thishost.key
1700 remote_smtp_single_domain:
1701 debug_print = "T: remote_smtp_single_domain for $local_part@$domain"
1703 connect_timeout = 15s
1704 delay_after_cutoff = false
1706 tls_certificate = /etc/exim4/ssl/thishost.crt
1707 tls_privatekey = /etc/exim4/ssl/thishost.key
1709 <%- if @use_smarthost -%>
1710 remote_smtp_smarthost:
1711 debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1713 delay_after_cutoff = false
1714 port = <%= @smarthost_port %>
1715 tls_tempfail_tryclear = false
1716 hosts_require_tls = <%= @smarthost %>
1717 tls_certificate = /etc/exim4/ssl/thishost.crt
1718 tls_privatekey = /etc/exim4/ssl/thishost.key
1720 # Send the message to procmail
1722 debug_print = "T: procmail_pipe for $local_part@$domain"
1724 command = /usr/bin/procmail -a ${substr_1:${local_part_suffix}}
1726 user = ${local_part}
1729 debug_print = "T: bsmtp for $local_part@$domain"
1736 user = ${extract{user}{\
1737 ${lookup{$domain}partial-lsearch{/etc/exim4/bsmtp}\
1741 <%- if @is_bugsmx -%>
1743 debug_print = "T: bugs_pipe for $local_part@$domain"
1745 command = /srv/bugs.debian.org/mail/run-procmail
1746 environment = "EXTENSION=${substr_1:${local_part_suffix}}:\
1747 EXT=${substr_1:${local_part_suffix}}:\
1748 LOCAL=${local_part}${local_part_suffix}:\
1749 RECIPIENT=${local_part}${local_part_suffix}@${domain}"
1755 <%- if @is_rtmaster -%>
1757 debug_print = "T: rt_pipe for $local_part${local_part_suffix}@$domain"
1760 environment = EXTENSION=${substr_1:${local_part_suffix}}
1761 allow_commands = /usr/bin/rt-mailgate
1765 ######################################################################
1766 # RETRY CONFIGURATION #
1767 ######################################################################
1769 # Domain Error Retries
1770 # ------ ----- -------
1774 ## Note that retry rules specify when an address / host / mail should
1775 ## become eligible for retrying. They do not specify when the retry
1776 ## attempt will actually occur, as this is dependent on queue run
1777 ## frequency and timing.
1779 # For mail to debian.org addresses, this rule starts with
1780 # retries every 10 minutes for 2 hours, then increasing retry intervals,
1781 # starting at 2 hours and increasing each time by a factor of 1.5, up to 16
1782 # hours, then retries every 8 hours until 14 days have passed since the first
1784 debian.org * F,2h,10m; G,16h,2h,1.5; F,14d,8h
1786 # Bounces should get retried every 10 minutes for up to 2 hours
1787 * * senders=: F,2h,10m
1789 # Temporary errors at RCPT TO get retried at 5 minute intervals for
1790 # 2 hours, then 10 minute intervals for 4 hours, and finally at 15
1791 # minute intervals for 4 days. This assumes that the cause of the
1792 # error will get resolved quickly in most cases.
1793 * rcpt_4xx F,2h,5m; F,4h,10m; F,4d,15m
1795 # For all remaining mails, addresses and hosts, this rule starts with
1796 # retries every 15 minutes for 2 hours, then increasing retry intervals,
1797 # starting at 2 hours and increasing each time by a factor of 1.5, up to 16
1798 # hours, then retries every 8 hours until 4 days have passed since the first
1800 * * F,2h,15m; G,16h,2h,1.5; F,4d,8h
1802 # End of Exim 4 configuration