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
8 # It is hand crafted, do not replace with anything generated by a config
10 # It is installed as part of the debian.org package -- don't edit this file
12 # The configuration file uses a set of macros and rules to generate an
13 # acceptable mail environment for debian.org machines. It deviates
14 # considerably from what could be considered a standard exim configuration.
16 # This configuration file brings in the necessary information from
17 # other databases stored in /etc/exim/ right now these are linear text
20 # This file is independent of the local host, it should not be changed
21 # per machine. primary_hostname is used in all places that require per-host
24 # The configuration files in /etc/exim are as follows:
25 # locals - This is a list of domains that are considered local. A local
26 # domain is essential one that deliveries to /var/mail
27 # will be attempted. The users available for local delivery
28 # comes from /etc/passwd and /etc/aliases. Wildcards are not
30 # virtualdomains - This is a list of all virtual domains. A virtual domain
31 # is much like a local domain, execpt that the delivery location
32 # and allowed set of users is controlled by a virtual domain
33 # alias file and not /etc/passwd. Wildcards are permitted
34 # rcpthosts - recipient hosts or relay domains. This is a list of
35 # all hosts that we mail exchange for. All domains that list
36 # this host in their MX records should be listed here. Wildcards
38 # relayhosts - Hostnames that can send any arbitarily addressed mail to
39 # us. This is primarily only usefull for emergancy 'queue
40 # flushing' operations, but should be populated with a list
41 # of trusted machines. Wildcards are not permitted
42 # mailhubdomains - Domains for which we are the MX, but the mail is relayed
43 # elsewhere. This is designed for use with small volume or
44 # restricted machines that need to use a smarthost for mail
45 # traffic. We will relay for them based on ssl cert validation
46 # but we need to teach exim how to route the mail to them. This is
48 # The division of files is designed so that all hosts may share rcpthosts
49 # and relayhosts, these could be replicated automatically if necessary.
51 # Exim's wildcard mechanism is a bit odd in that to say "any address in
52 # debian.org including debian.org" you must use two patterns,
55 # Also you can only place a * before a . and as the first char in a string.
56 # Wildcards always match last so they may be used as a catchall.
58 # Further details can be found in each of the files.
60 # Usefull exim commands:
61 # exim4 -qf - Try sending all messages right now, including frozen ones
62 # exim4 -bt foo@blah - Write what exim would do if it saw the address
63 # Great for testing virtual domains and forward files
65 # Special Features for users:
66 # .forward-foo - is understood as an extension address for bar-foo@cow.com
67 # .forward-default - is understood to be a catch all for bar-*@cow.com
68 # .procmailrc - with no .forward file invokes procmail for delivery
71 # For virtual domains the first lookup is done against a linear text
72 # database called 'aliases', then .forward files are consulted. Exim
73 # filtering is available for these .forward files only. .forward-default
74 # is the universal catch all for everything not handled.
76 # Heuristic check (none bad enough to cause a hard reject, but in aggregate
77 # will trigger things like rcpt to rate limiting or possibly a reject if
78 # enough hits are triggered.
80 # value is stored in acl_c1
82 ######################################################################
83 # MAIN CONFIGURATION SETTINGS #
84 ######################################################################
86 # These options specify the Access Control Lists (ACLs) that
87 # are used for incoming SMTP messages - after the RCPT and DATA
88 # commands, respectively.
90 acl_smtp_helo = check_helo
91 acl_smtp_rcpt = ${if ={$interface_port}{587} {check_submission}{check_recipient}}
92 acl_smtp_data = check_message
94 # accept domain literal syntax in e-mail addresses. To actually make use of
95 # this a router is also required
96 allow_domain_literals = true
98 # This setting defines a named domain list called
99 # local_domains. It will be referenced
100 # later on by the syntax "+local_domains".
101 # Other domain and host lists may follow.
102 # @ is the local FQDN, @[] matches the IP adress of any local interface.
104 .include_if_exists /etc/exim4/local-auto.conf
105 .include_if_exists /etc/exim4/local-settings.conf
107 domainlist local_domains = @ : \
110 ${if exists {/etc/exim4/locals}{lsearch;/etc/exim4/locals}}
112 domainlist virtual_domains = partial-lsearch;/etc/exim4/virtualdomains
114 domainlist submission_domains = ${if exists {/etc/exim4/submission-domains}{/etc/exim4/submission-domains}{}}
116 domainlist handled_domains = +local_domains : +virtual_domains
118 localpartlist local_only_users = lsearch;/etc/exim4/localusers
120 # Domains we relay for; that is domains that aren't considered local but we
121 # accept mail for them.
122 domainlist rcpthosts = partial-lsearch;/etc/exim4/rcpthosts
123 hostlist debianhosts = 127.0.0.1 : net-lsearch;/var/lib/misc/thishost/debianhosts
124 domainlist mailhubdomains = lsearch;/etc/exim4/manualroute
126 .ifndef RESERVEDADDRS
127 RESERVEDADDRS = 0.0.0.0/8 : 127.0.0.0/8 : 10.0.0.0/8 : 169.254.0.0/16 : \
128 172.16.0.0/12 : 192.0.0.0/17 : 192.168.0.0/16 : \
129 224.0.0.0/4 : 240.0.0.0/5 : 248.0.0.0/5
132 hostlist reservedaddrs = RESERVEDADDRS
135 tls_certificate = /etc/exim4/ssl/thishost.crt
136 tls_privatekey = /etc/exim4/ssl/thishost.key
137 tls_try_verify_hosts = *
138 tls_verify_certificates = /etc/exim4/ssl/ca.crt
139 tls_crl = /etc/exim4/ssl/ca.crl
142 #system_filter = /etc/exim4/filter
143 #system_filter_file_transport = address_file
145 # The setting below causes Exim to do a reverse DNS lookup on all incoming
146 # IP calls, in order to get the true host name. If you feel this is too
147 # expensive, you can specify the networks for which a lookup is done, or
148 # remove the setting entirely.
150 dns_ipv4_lookup = !localhost
152 # If this option is set, then any process that is running as one of the
153 # listed users may pass a message to Exim and specify the sender's
154 # address using the "-f" command line option, without Exim's adding a
157 #trusted_users = mail
158 #trusted_users = mail : www-data : ${if exists{/home/qa}{qa}{}}
159 untrusted_set_sender = *
161 # Some operating systems use the "gecos" field in the system password file
162 # to hold other information in addition to users' real names. Exim looks up
163 # this field when it is creating "sender" and "from" headers. If these options
164 # are set, exim uses "gecos_pattern" to parse the gecos field, and then
165 # expands "gecos_name" as the user's name. $1 etc refer to sub-fields matched
168 gecos_pattern = ^([^,:]*)
171 # This tells exim to immediately discard error messages (ie double bounces).
172 ignore_bounce_errors_after = 0s
174 timeout_frozen_after=14d
176 message_size_limit = 100M
178 smtp_accept_max = 300
179 smtp_accept_max_per_host = ${if match_ip {$sender_host_address}{+debianhosts}{0}{7}}
180 smtp_accept_queue = 200
181 smtp_accept_queue_per_connection = 50
182 smtp_accept_reserve = 25
183 smtp_reserve_hosts = +debianhosts
185 split_spool_directory = true
186 check_spool_inodes = 200
187 check_spool_space = 20M
192 deliver_queue_load_max = 50
194 queue_list_requires_admin = false
200 .ifdef HAVE_USER_DEBBUGS MAIL_RELAY STUPID_FIREWALL
201 daemon_smtp_ports = 25 : 587
205 remote_sort_domains = *.debian.org:*.debian.net
207 pipelining_advertise_hosts = !*
209 tls_advertise_hosts = *
211 smtp_enforce_sync = true
213 log_selector = +tls_cipher +tls_peerdn +queue_time +deliver_time +smtp_connection +smtp_incomplete_transaction +smtp_confirmation
217 VDOMAINDATA = ${lookup{$domain}partial-lsearch{/etc/exim4/virtualdomains}{$value}}
218 WHITELIST = ${if match_domain{$domain}{+virtual_domains}{\
219 ${if exists {/srv/$domain/mail/whitelist}{\
220 ${lookup{$local_part}lsearch{/srv/$domain/mail/whitelist}{$value}{}}\
222 }{${lookup{$local_part}lsearch{/etc/exim4/whitelist}{$value}{}} : ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-whitelist}{$value}{}}}}
223 GREYLIST_LOCAL_PARTS = ${if match_domain{$domain}{+virtual_domains}\
224 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}\
225 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}{$local_part}{}}}{}}}\
226 {${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}} : \
227 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}}}}
228 RT_QUEUE_MAP = /srv/rt.debian.org/mail/rt_queue_map
230 ######################################################################
231 # ACL CONFIGURATION #
232 ######################################################################
238 # These are in HELO acl so that they are only run once. They increment a counter,
239 # so we don't want it to increment per rcpt to.
241 warn dnslists = list.dnswl.org&0.0.0.3
242 log_message = Hit on list.dnswl.org for $sender_host_address
243 set acl_c1 = ${eval:$acl_c1-30}
245 warn dnslists = list.dnswl.org&0.0.0.2
246 log_message = Hit on list.dnswl.org for $sender_host_address
247 set acl_c1 = ${eval:$acl_c1-20}
249 warn dnslists = list.dnswl.org
250 log_message = Hit on list.dnswl.org for $sender_host_address
251 set acl_c1 = ${eval:$acl_c1-10}
253 warn condition = ${if isip {$sender_helo_name}{true}{false}}
254 log_message = remote host used IP address in HELO/EHLO greeting
255 set acl_c1 = ${eval:$acl_c1+20}
257 warn !hosts = +debianhosts
258 condition = ${if eq{$host_lookup_failed}{1}}
259 set acl_c1 = ${eval:$acl_c1+20}
261 warn !hosts = +debianhosts
262 condition = ${if eq{$host_lookup_failed}{0}}
263 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}}
264 set acl_c1 = ${eval:$acl_c1+20}
266 warn !hosts = +debianhosts
267 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}}
268 set acl_c1 = ${eval:$acl_c1+20}
270 warn !hosts = +debianhosts
271 dnslists = dul.dnsbl.sorbs.net
272 set acl_c1 = ${eval:$acl_c1+15}
274 # If the sender's helo name is empty, the message will be rejected later
275 # because the helo is empty. If the rDNS lookup failed, we are already
276 # going to greylist them, so no sense worrying about it here. Finally,
277 # if rDNS does not match helo name (both lower cased first), greylist.
279 warn !hosts = +debianhosts
280 condition = ${if eq {$host_lookup_failed}{1}{no}{yes}}
281 condition = ${if def:sender_helo_name {yes}{no}}
282 condition = ${if eq {${lc:$sender_helo_name}}{${lc:$sender_host_name}}{no}{yes}}
283 log_message = HELO doesn't match rDNS
284 set acl_c1 = ${eval:$acl_c1+8}
287 # matches 098325879 - looks fishy
289 warn condition = ${if and { \
290 { !match{$sender_helo_name}{\N^\[.+\]$\N} } \
291 { !match{$sender_helo_name}{\N^(?i)((?=[^-])[a-z0-9-]*[a-z0-9]\.)+[a-z]{2,6}$\N} } \
294 log_message = non-FQDN HELO
295 set acl_c1 = ${eval:$acl_c1+12}
297 # Matches DOMAIN99.com - looks bad
299 warn condition = ${if match {$sender_helo_name}{\N^[A-Z]+[A-Z0-9\-]+\.[A-Za-z0-9]+$\N}}
300 log_message = SHOUTING HELO
301 set acl_c1 = ${eval:$acl_c1+7}
303 # Random HELO (run of 7 consonants) (constructed by viruses). We purposefully
304 # skip matching on machines named .*smtp.*, since that's 4 already. This is a fairly
305 # naive test, so it's not worth much
307 warn condition = ${if match {${lc:$sender_helo_name}}{smtp}{no}{yes}}
308 condition = ${if match {${lc:$sender_helo_name}}{\N^[a-z0-9]+\.[a-z]+$\N}}
309 condition = ${if match {${lc:$sender_helo_name}}{\N.*[bcdfghjklmnpqrstvwxz]{7,}.*\.[a-z]+$\N}}
310 log_message = random HELO
311 set acl_c1 = ${eval:$acl_c1+5}
313 # Implicit, but simpler to just say it
316 #!!# ACL that is used after the RCPT command on the submission port
319 # Accept if the source is local SMTP (i.e. not over TCP/IP).
320 # We do this by testing for an empty sending host field.
321 accept hosts = : 127.0.0.1
322 # Defer after too many bad RCPT TO's. Legit MTAs will retry later.
323 # This is a rough pass at preventing addres harvesting or other mail blasts.
326 accept verify = certificate
329 defer log_message = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count
330 message = Too many bad recipients, try again later
331 condition = ${if > {${eval:$rcpt_fail_count}}{3}{yes}{no}}
334 ratelimit = 5 / 60m / per_rcpt / $sender_host_address
335 !hosts = +debianhosts
336 message = sorry, only 5 reports per hour for submission
338 accept domains = +local_domains
341 message = unknown user
344 accept domains = +mailhubdomains
346 message = unknown user
347 verify = recipient/callout=30s,defer_ok,use_sender,no_cache
349 accept domains = +submission_domains
351 message = unknown user
354 deny message = relay not permitted
356 #!!# ACL that is used after the RCPT command
360 accept verify = certificate
363 # Defer after too many bad RCPT TO's. Legit MTAs will retry later.
364 # This is a rough pass at preventing addres harvesting or other mail blasts.
366 defer log_message = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count
367 message = Too many bad recipients, try again later
368 !hosts = +debianhosts
369 condition = ${if > {${eval:$rcpt_fail_count}}{3}{yes}{no}}
371 # Dump spambots that are so stupid they say helo as our IP address
373 drop !hosts = +debianhosts
374 condition = ${if eq {$sender_helo_name}{$interface_address}{yes}{no}}
375 message = HELO mismatch Forged HELO for ($sender_helo_name)
377 # Also for spambots that say helo as us or one of our domains
379 drop !hosts = +debianhosts
380 condition = ${if match_domain{$sender_helo_name}{$primary_hostname:+handled_domains}}
381 condition = ${if !match{$sender_host_name}{${rxquote:$sender_helo_name}\N$\N}}
382 message = HELO mismatch Forged HELO for ($sender_helo_name)
384 # This logic gives you a list of commonly forged domains in helo to reject against
386 warn set acl_m2 = ${lookup{$sender_helo_name} \
387 nwildlsearch{/etc/exim4/helo-check} \
388 {${if eq{$value}{}{$sender_helo_name}{$value}}}{}}
390 # This is a failsafe in case DNS fails - we defer instead of hard reject if they
391 # say helo as a name in the list but we can't look them up
393 defer !hosts = +debianhosts
394 condition = ${if eq{$acl_m2}{}{no}{yes}}
395 condition = ${if eq{$sender_host_name}{}{yes}{no}}
396 condition = ${if eq{$host_lookup_failed}{1}{no}{yes}}
397 message = Access temporarily denied. Resolve failed PTR for $sender_host_address
399 # If DNS works, go ahead and reject them
401 drop !hosts = +debianhosts
402 condition = ${if and { {!eq{$acl_m2}{}}{!match{$sender_host_name}{${rxquote:$acl_m2}\N$\N}}}{yes}{no}}
403 message = HELO mismatch Forged HELO for ($sender_helo_name)
405 # disabled accounts don't even get local mail.
406 deny local_parts = lsearch;/var/lib/misc/$primary_hostname/mail-disable
407 domains = +local_domains
408 message = ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-disable}{$value}}
410 deny domains = +virtual_domains
411 local_parts = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/localonly}}}\
412 {${extract{directory}{VDOMAINDATA}{${value}/localonly}}}\
414 hosts = !+debianhosts
415 message = mail for <$local_part@$domain> only accepted from debian.org machines
416 # Accept if the source is local SMTP (i.e. not over TCP/IP).
417 # We do this by testing for an empty sending host field.
420 deny domains = +handled_domains
421 local_parts = ^[.] : ^.*[@%!/|]
423 deny domains = !+handled_domains
424 local_parts = ^[./|] : ^.*[@%!] : ^.*/\\.\\./
426 # forwards mail to @d.o address, even if it's a bounce from master, no reply
427 # from source address; rejecting all mail now.
428 deny recipients = mendoza@debian.org
429 hosts = 65.110.39.147 : 64.39.31.15
430 message = <mendoza@kenny.linuxsis.net> cannot forward here while mailer-daemon mail is not caught
432 deny condition = ${lookup{$sender_address_local_part}lsearch{/etc/exim4/localusers}{true}}
433 sender_domains= +local_domains : debian.org : debian.net : debian.com
434 hosts = !+debianhosts
435 message = mail from <$sender_address> not allowed externally
437 deny condition = ${if match_domain{$sender_address_domain}{+virtual_domains}{1}{0}}
438 condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/neversenders}}}{1}{0}}
439 condition = ${if match_local_part {$sender_address_local_part}{${extract{directory}{VDOMAINDATA}{${value}/neversenders}}}{1}{0}}
440 message = no mail should ever come from <$sender_address>
442 deny local_parts = +local_only_users
443 domains = +local_domains
444 hosts = !+debianhosts
445 message = mail for $local_part is only accepted internally
447 deny message = address $sender_host_address is listed in $dnslist_domain; $dnslist_text
448 hosts = !+debianhosts
449 dnslists = rbl.debian.net : rbl.debian.net/$sender_address_domain
451 deny !recipients = survey@popcon.debian.org
454 defer !hosts = +debianhosts
455 condition = ${if >{${eval:$acl_c1}}{0}}
456 ratelimit = 10 / 60m / per_rcpt / $sender_host_address
457 message = slow down (no reverse dns, mismatched ehlo, dialup, or in blacklists)
460 # Check with policyd-weight - this only works with a version after etch's,
461 # sadly. etch's version attempts to hold the socket open, since that's what
462 # postfix expects. Exim, on the other hand, expects the remote side to close
463 # the socket when it's finished sending data, so it see each transaction as
464 # an incomplete read. I'm sure there's a way we could force exim to do
465 # something sick and clever to force either the interpretation or the socket
466 # closure, but I'm fairly sure it's now worth it, since the backport of
467 # policyd-weight is trivial.
468 warn !hosts = +debianhosts
469 set acl_m9 = ${readsocket{inet:127.0.0.1:12525}\
470 {request=smtpd_access_policy\n\
471 protocol_state=RCPT\n\
472 protocol_name=${uc:$received_protocol}\n\
473 helo_name=$sender_helo_name\n\
474 queue_id=$message_exim_id\n\
475 sender=$sender_address\n\
476 recipient=$local_part@$domain\n\
477 recipient_count=$rcpt_count\n\
478 client_address=$sender_host_address\n\
479 client_name=$sender_host_name\n\
480 reverse_client_name=$sender_host_name\n\
481 instance=$sender_host_address.$sender_address.$sender_helo_name\n\n}\
482 {20s}{\n}{socket failure}}
484 # Defer on socket error
485 defer !hosts = +debianhosts
486 condition = ${if eq{$acl_m9}{socket failure}{yes}{no}}
487 message = Cannot connect to policyd-weight. Please try again later.
489 # Set proposed action to $acl_m8 and message to $acl_m7
490 warn !hosts = +debianhosts
491 set acl_m8 = ${extract{action}{$acl_m9}}
492 set acl_m7 = ${sg{$acl_m9}{\Naction=[^ ]+ (.*)\n\n\N}{\$1}}
494 # Add X-policyd-weight header line to message
495 warn !hosts = +debianhosts
497 condition = ${if eq{$acl_m8}{PREPEND}{yes}{no}}
499 # Write log message, if policyd-weight can't run checks
500 warn !hosts = +debianhosts
501 log_message = policyd-weight message: $acl_m7
502 condition = ${if eq{$acl_m8}{DUNNO}{yes}{no}}
504 # Deny mails which policyd-weight thinks are spam
505 deny !hosts = +debianhosts
506 message = policyd-weight said: $acl_m7
507 condition = ${if eq{$acl_m8}{550}{yes}{no}}
509 # Defer messages when policyd-weight suggests so.
510 defer !hosts = +debianhosts
511 message = policyd-weight said: $acl_m7
512 condition = ${if eq{$acl_m8}{450}{yes}{no}}
515 warn recipients = survey@popcon.debian.org
516 set acl_m1 = PopconMail
518 warn domains = rt.debian.org
520 set acl_m12 = ${if def:acl_m12 {$acl_m12} {${if match{$local_part}{[^+]+\\+\\d+} {RTMailRecipientHasSubaddress}}}}
522 warn domains = packages.qa.debian.org
525 warn recipients = owner@packages.qa.debian.org : postmaster@packages.qa.debian.org
526 set acl_m1 = PTSOwner
528 warn recipients = change@db.debian.org : changes@db.debian.org : chpasswd@db.debian.org : ping@db.debian.org : recommend@nm.debian.org
529 set acl_m1 = DBSignedMail
532 domains = packages.qa.debian.org
533 condition = ${if match{$local_part}{\N^bounces+\N}}
534 set acl_m1 = PTSListBounce
536 .ifdef USE_GREYLISTING
539 message = $sender_host_address is not yet authorized to deliver mail from <$sender_address> to <$local_part@$domain>.
540 log_message = greylisted.
541 local_parts = ${if match_domain{$domain}{+virtual_domains}\
542 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}\
543 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}{$local_part}{}}}{}}}\
544 {${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}} : \
545 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}}}}
547 !hosts = : +debianhosts : WHITELIST : \
548 ${if exists {/etc/greylistd/whitelist-hosts}\
549 {/etc/greylistd/whitelist-hosts}{}} : \
550 ${if exists {/var/lib/greylistd/whitelist-hosts}\
551 {/var/lib/greylistd/whitelist-hosts}{}}
553 domains = +handled_domains : +rcpthosts
554 condition = ${readsocket{/var/run/greylistd/socket}\
556 $sender_host_address \
558 $local_part@$domain}\
562 # next three are greylisting, inspired by http://www.bebt.de/blog/debian/archives/2006/07/30/T06_12_27/index.html
563 # this adds acl_m4 if there isn't one (so unique per message)
566 !hosts = : +debianhosts : WHITELIST
567 condition = ${if def:acl_m4 {no}{yes}}
568 set acl_m4 = $pid.$tod_epoch.$sender_host_port
570 # and defers the message if postgrey thinks it should be defered ...
573 !hosts = : +debianhosts : WHITELIST
575 domains = +handled_domains : +rcpthosts
576 local_parts = GREYLIST_LOCAL_PARTS
577 set acl_m3 = request=smtpd_access_policy\n\
578 protocol_state=RCPT\n\
579 protocol_name=${uc:$received_protocol}\n\
580 instance=${acl_m4}\n\
581 helo_name=${sender_helo_name}\n\
582 client_address=${substr_-3:${mask:$sender_host_address/24}}\n\
583 client_name=${sender_host_name}\n\
584 sender=${sender_address}\n\
585 recipient=$local_part@$domain\n\n
587 ${readsocket{/var/run/postgrey/socket}{$acl_m3}\
588 {5s}{}{action=DUNNO}}\
590 message = ${sg{$acl_m3}{^\\w+\\s*}{}}
591 log_message = greylisted.
592 condition = ${if eq{${uc:${substr{0}{5}{$acl_m3}}}}{DEFER}}
594 # ... or adds a header with information about how long the delay was
597 !hosts = : +debianhosts : WHITELIST
599 domains = +handled_domains : +rcpthosts
600 local_parts = GREYLIST_LOCAL_PARTS
601 condition = ${if eq{${uc:${substr_0_7:$acl_m3}}}{PREPEND}}
602 message = ${sg{$acl_m3}{^\\w+\\s*}{}}
606 accept local_parts = postmaster
607 domains = +handled_domains : +rcpthosts
609 deny log_message = <$sender_address> is blacklisted
610 senders = ${if exists{/etc/exim4/blacklist}{/etc/exim4/blacklist}{}}
611 message = We have blacklisted <$sender_address>. Please stop mailing us
613 deny message = host $sender_host_address is listed in $dnslist_domain; see $dnslist_text
614 dnslists = ${if match_domain{$domain}{+virtual_domains}\
615 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/rbllist}}}\
616 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/rbllist}}}{$value}{}}}{}}}\
617 {${lookup{$local_part}lsearch{/etc/exim4/rbllist}{$value}{}} : \
618 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-rbl}{$value}{}}}}
619 domains = +handled_domains : +rcpthosts
620 !hosts = +debianhosts : WHITELIST
622 deny message = domain $sender_address_domain is listed in $dnslist_domain; see $dnslist_text
623 dnslists = ${if match_domain{$domain}{+virtual_domains}\
624 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/rhsbllist}}}\
625 {${expand:${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/rhsbllist}}}{$value}{}}}}{}}}\
626 {${expand:${lookup{$local_part}lsearch{/etc/exim4/rhsbllist}{$value}{}}} : \
627 ${expand:${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-rhsbl}{$value}{}}}}}
628 domains = +handled_domains : +rcpthosts
629 !hosts = +debianhosts : WHITELIST
631 deny domains = +handled_domains : +rcpthosts
632 local_parts = ${if match_domain{$domain}{+virtual_domains}\
633 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/callout_users}}}\
634 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/callout_users}}}{$local_part}{}}}{}}}\
635 {${lookup{$local_part}lsearch{/etc/exim4/callout_users}{$local_part}{}} : \
636 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-callout}{$local_part}{}}}}
637 !hosts = +debianhosts : WHITELIST
638 !verify = sender/callout
640 accept domains = +mailhubdomains
642 message = unknown user
643 verify = recipient/callout=30s,defer_ok,use_sender,no_cache
645 accept domains = +handled_domains
647 message = unknown user
648 verify = recipient/defer_ok
650 accept domains = +rcpthosts
652 message = unrouteable address
655 accept hosts = +debianhosts
657 accept authenticated = *
659 deny message = relay not permitted
661 #!!# ACL that is used after the DATA command
663 require verify = header_syntax
664 message = Invalid syntax in the header
666 deny condition = ${if eq {$acl_m1}{RTMail}}
667 condition = ${if and{{!match {${lc:$rh_Subject:}} {debian rt}} \
668 {!match {${lc:$rh_Subject:]}} {\\[rt.debian.org }} \
669 {!match {$acl_m12}{RTMailRecipientHasSubaddress}}}}
670 message = messages to the Request Tracker system require a subject tag or a subaddress
672 deny !hosts = +debianhosts : 217.196.43.134
673 condition = ${if eq {$acl_m1}{PTSMail}}
674 condition = ${if def:h_X-PTS-Approved:{false}{true}}
675 message = messages to the PTS require an X-PTS-Approved header
677 deny condition = ${if match {$message_body}{\Nhttp:\/\/[a-z\.-]+\/video1?.exe\N}}
678 message = Blackisted URI found in body
680 deny condition = ${if eq {$acl_m1}{DBSignedMail}}
681 condition = ${if and {{!match {$message_body}{PGP MESSAGE}} \
682 {!match {$message_body}{PGP SIGNED MESSAGE}} \
683 {!match {$message_body}{PGP SIGNATURE}} \
684 {!match {$header_content-type:}{multipart/signed}} \
685 {!match {$header_content-type:}{pgp}} \
688 message = Mail to this address needs to be PGP-signed
690 # RFC 822 and 2822 say that headers must be ASCII. This kinda emulates
691 # postfix's strict_7bit_headers option, but only checks a few common problem
692 # headers, as there doesn't appear to be an easy way to check them all.
694 condition = ${if or {{match {$rh_Subject:}{[\200-\377]}}\
695 {match {$rh_To:}{[\200-\377]}}\
696 {match {$rh_From:}{[\200-\377]}}\
697 {match {$rh_Cc:}{[\200-\377]}}}{true}{false}}
698 message = improper use of 8-bit data in message header: message rejected
701 condition = ${if match {$rh_Subject:}{[^[:print:]]\{8\}}{true}{false}}
702 message = Your mailer is not RFC 2047 compliant: message rejected
708 message = malware detected: $malware_name: message rejected
711 deny spam = $value/defer_ok
712 domains = +handled_domains : +rcpthosts
713 message = message got a spam score of $spam_score
714 local_parts = ${if exists {/etc/exim4/sa_users}\
715 {${if match_domain{$domain}{+virtual_domains}\
716 {${lookup{$local_part@$domain}nwildlsearch{/etc/exim4/sa_users}{$local_part}{}}}\
717 {${lookup{$local_part}lsearch{/etc/exim4/sa_users}{$local_part}{}}}}}}
719 # Check header_sender except for survey@popcon.d.o
720 deny condition = ${if eq{$acl_m1}{PopconMail}{false}{true}}
721 !verify = header_sender
722 message = No valid sender found in the From:, Sender: and Reply-to: headers
728 ######################################################################
729 # REWRITE CONFIGURATION #
730 ######################################################################
736 \N^buildd_(.*)@ries\.debian\.org$\N buildd_$1@buildd.debian.org T
737 \N^buildd_(.*)@klecker\.debian\.org$\N buildd_$1@buildd.debian.org T
738 *@debian.org ${lookup{$1}cdb{/var/lib/misc/${primary_hostname}/mail-forward.cdb}{$value}fail} T
739 *@people.debian.org ${lookup{$1}cdb{/var/lib/misc/${primary_hostname}/mail-forward.cdb}{$value}fail} T
740 #*@${primary_hostname} "${if exists{/etc/exim4/email-addresses}{${lookup{$1}lsearch{/etc/exim4/email-addresses}{$value}fail}}fail}" fFs
741 m68k@buildd.debian.org m68k-build@nocrew.org Ttrbc
744 #!!#######################################################!!#
745 #!!# Here follow routers created from the old routers, #!!#
746 #!!# for handling non-local domains. #!!#
747 #!!#######################################################!!#
753 ######################################################################
754 # ROUTERS CONFIGURATION #
755 # Specifies how addresses are handled #
756 ######################################################################
757 # ORDER DOES MATTER #
758 # An address is passed to each in turn until it is accepted. #
759 ######################################################################
763 domains = +mailhubdomains
764 transport = remote_smtp
765 route_data = ${lookup{$domain}lsearch{/etc/exim4/manualroute}}
766 require_files = /etc/exim4/manualroute
769 debug_print = "R: bsmtp for $local_part@$domain"
771 domains = !+local_domains
772 require_files = /etc/exim4/bsmtp
773 route_list = * ${extract{file}{\
774 ${lookup{$domain}partial-lsearch{/etc/exim4/bsmtp}\
778 # This router routes to remote hosts over SMTP by explicit IP address,
779 # given as a "domain literal" in the form [nnn.nnn.nnn.nnn]. The RFCs
780 # require this facility, which is why it is enabled by default in Exim.
782 debug_print = "R: ipliteral for $local_part@$domain"
784 domains = !+handled_domains
785 transport = remote_smtp
786 ignore_target_hosts = +reservedaddrs
790 debug_print = "R: smarthost for $local_part@$domain"
792 domains = !+handled_domains
793 transport = remote_smtp_smarthost
794 route_list = * SMARTHOST
795 host_find_failed = defer
796 same_domain_copy_routing = yes
799 # This router routes to remote hosts over SMTP using a DNS lookup.
800 # Ignore reserved network responses, including localhost.
802 debug_print = "R: dnslookup for $local_part@$domain"
804 domains = !+handled_domains
805 transport = remote_smtp
806 ignore_target_hosts = +reservedaddrs
809 # This allows local delivery to be forced, avoiding alias files and
813 # debug_print = "R: real_local for $local_part@$domain"
816 # domains = lsearch;/etc/exim4/locals
817 # local_part_prefix = real-
818 # transport = local_delivery
820 # This router handles aliasing using a traditional /etc/aliases file.
821 # If any of your aliases expand to pipes or files, you will need to set
822 # up a user and a group for these deliveries to run under. You can do
823 # this by uncommenting the "user" option below (changing the user name
824 # as appropriate) and adding a "group" option if necessary.
827 debug_print = "R: system_aliases for $local_part@$domain"
831 data = ${lookup{$local_part}lsearch*{/etc/aliases}}
832 domains = +local_domains
833 file_transport = address_file
834 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
835 pipe_transport = address_pipe
838 # This router handles forwarding using traditional .forward files.
839 # It also allows mail filtering when a forward file starts with the
840 # string "# Exim filter": to disable filtering, uncomment the "filter"
841 # option. The check_ancestor option means that if the forward file
842 # generates an address that is an ancestor of the current one, the
843 # current one gets passed on instead. This covers the case where A is
844 # aliased to B and B has a .forward file pointing to A.
846 # For standard debian setup of one group per user, it is acceptable---normal
847 # even---for .forward to be group writable. If you have everyone in one
848 # group, you should comment out the "modemask" line. Without it, the exim
849 # default of 022 will apply, which is probably what you want.
852 debug_print = "R: userforward for $local_part${local_part_suffix}@$domain"
857 directory_transport = address_directory
858 domains = +local_domains
859 # filter - I have disabled filtering to force users to use .forward-foo files
860 # or procmail. This will make it easier to move mailers in the future
862 # This bit does the qmailesque extension names, foo-bar@ is .forward-foo it
863 # also checks if the .forward-bar exists, if not then it uses
864 # .forward-default instead.
865 file = $home/.forward\
866 ${if eq{}{$local_part_suffix}{}{\
867 ${if exists {${home}/.forward${local_part_suffix}} \
868 {${local_part_suffix}}{-default}}\
871 file_transport = address_file
872 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
873 local_part_suffix = -*
874 local_part_suffix_optional
876 pipe_transport = address_pipe
877 reply_transport = address_reply
878 require_files = $home
879 router_home_directory = ${lookup passwd{$local_part}{${extract{5}{:}{$value}}}fail}
883 debug_print = "R: userforward for $local_part${local_part_suffix}@$domain"
887 directory_transport = address_directory
888 domains = +local_domains
889 # filter - I have disabled filtering to force users to use .forward-foo files
890 # or procmail. This will make it easier to move mailers in the future
892 # This bit does the qmailesque extension names, foo-bar@ is .forward-foo it
893 # also checks if the .forward-bar exists, if not then it uses
894 # .forward-default instead.
895 file = $home/.forward\
896 ${if eq{}{$local_part_suffix}{}{\
897 ${if exists {${home}/.forward${local_part_suffix}} \
898 {${local_part_suffix}}{-default}}\
901 file_transport = address_file
902 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
903 local_part_suffix = -*
904 local_part_suffix_optional
906 pipe_transport = address_pipe
907 reply_transport = address_reply
908 require_files = $home
911 # This delivers to procmail
913 debug_print = "R: procmail for $local_part@$domain"
916 domains = +local_domains
917 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
920 require_files = $local_part:$home/.procmailrc
921 transport = procmail_pipe
922 transport_current_directory = $home
924 # This driver delivers to the LDAP generated alias file.
926 debug_print = "R: ldap_aliases for $local_part@$domain"
930 data = ${if exists{/var/lib/misc/$primary_hostname/mail-forward.cdb}\
931 {${lookup{$local_part}cdb\
932 {/var/lib/misc/$primary_hostname/mail-forward.cdb}}}}
933 domains = +local_domains
934 file_transport = address_file
935 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
936 pipe_transport = address_pipe
939 # This director matches local user mailboxes.
941 debug_print = "R: localuser for $local_part@$domain"
944 domains = +local_domains
945 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
946 # Disable if the user has never logged in
947 require_files = $home
948 transport = local_delivery
951 # Now we begin the Virtual Domain configuration
952 # Everything before here should apply only to the local domains with a
955 # exim4 fails the router if it can't change to the user/group for delivery
956 # during verification. So we have to seperate the cases of verifying
957 # the virts, and delivering to them. blah.
959 # This router delivers for packages.d.o
961 debug_print = "R: packages for $local_part@$domain"
963 file_transport = address_file
964 pipe_transport = address_pipe
965 domains = packages.debian.org
966 require_files = /org/packages.debian.org/conf/maintainer
967 data = ${lookup{$local_part}cdb{/org/packages.debian.org/conf/maintainer.cdb}}
968 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
969 transport_home_directory = /org/packages.debian.org/mail
970 transport_current_directory = /org/packages.debian.org/mail
975 .ifdef HAVE_USER_DEBBUGS
976 # This router delivers for bugs.d.o
978 debug_print = "R: bugs for $local_part@$domain"
980 transport = bugs_pipe
981 domains = bugs.debian.org
982 cannot_route_message = Unknown or archived bug
983 require_files = /org/bugs.debian.org/mail/run-procmail
985 local_parts = ${if match\
987 {\N^(\d+)(\d{2})(?:-(?:(?:submit|maintonly|quiet|forwarded|done|close|request|submitter)|(?:unsubscribe|ignore|(?:sub(?:scribe|help|yes|approve|reject))|unsubyes|bounce|probe|approve|reject|setlistyes|setlistsilentyes).*))?$\N}\
988 {${if exists{/org/bugs.debian.org/spool/db-h/$2/$1$2.summary}\
989 {$local_part}fail}}fail}
992 # This router delivers for rt.d.o
994 debug_print = "R: rt for $local_part@$domain"
996 domains = rt.debian.org
997 require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP
998 local_parts = ${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}}
999 local_part_suffix = +*
1000 local_part_suffix_optional
1001 pipe_transport = rt_pipe
1002 data = "|/usr/bin/rt-mailgate --queue '${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}}' --url https://rt.debian.org/ --extension ticket --action ${if match{$local_part}{.*-comment.*}{comment}{correspond}}"
1003 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1006 debug_print = "R: virt_aliases for $local_part@$domain"
1008 data = ${if exists{\
1009 ${extract{directory}{VDOMAINDATA}{${value}/aliases}}}\
1010 {${lookup{$local_part}lsearch*{\
1011 ${extract{directory}{VDOMAINDATA}{$value/aliases}}\
1013 directory_transport = address_directory
1014 cannot_route_message = Unknown user
1015 domains = +virtual_domains
1016 file_transport = address_file
1017 pipe_transport = address_pipe
1018 qualify_preserve_domain
1019 retry_use_local_part
1020 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1021 transport_home_directory = ${extract{directory}{VDOMAINDATA}}
1025 debug_print = "R: virt_direct for $local_part@$domain"
1031 directory_transport = address_directory
1032 domains = +virtual_domains
1033 file = $home/.forward-\
1034 ${if exists {${home}/.forward-${local_part}}{${local_part}}\
1036 file_transport = address_file
1037 pipe_transport = address_pipe
1038 reply_transport = address_reply
1039 retry_use_local_part
1040 router_home_directory = ${extract{directory}{VDOMAINDATA}}
1041 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1044 # This is a senmailesque alias file lookup
1046 debug_print = "R: virt_aliases for $local_part@$domain"
1050 data = ${if exists{\
1051 ${extract{directory}{VDOMAINDATA}{${value}/aliases}}}\
1052 {${lookup{$local_part}lsearch*{\
1053 ${extract{directory}{VDOMAINDATA}{$value/aliases}}\
1055 directory_transport = address_directory
1056 domains = +virtual_domains
1057 file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}}
1058 cannot_route_message = Unknown user
1059 group = ${extract{group}{VDOMAINDATA}}
1060 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1061 pipe_transport = address_pipe
1062 qualify_preserve_domain
1063 retry_use_local_part
1064 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1065 transport_home_directory = ${extract{directory}{VDOMAINDATA}}
1067 user = ${extract{user}{VDOMAINDATA}}
1069 # This is a qmailesque deliver into a directory of .forward files
1071 debug_print = "R: virt_direct for $local_part@$domain"
1077 directory_transport = address_directory
1078 domains = +virtual_domains
1079 file = $home/.forward-\
1080 ${if exists {${home}/.forward-${local_part}}{${local_part}}\
1082 file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}}
1083 group = ${extract{group}{VDOMAINDATA}}
1084 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1086 pipe_transport = address_pipe
1087 reply_transport = address_reply
1088 retry_use_local_part
1089 router_home_directory = ${extract{directory}{VDOMAINDATA}}
1090 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1092 user = ${extract{user}{VDOMAINDATA}}
1093 #debug_print = .forward-${if exists {${home}/.forward-${local_part}} {${local_part}} {default}}
1095 ######################################################################
1096 # TRANSPORTS CONFIGURATION #
1097 ######################################################################
1098 # ORDER DOES NOT MATTER #
1099 # Only one appropriate transport is called for each delivery. #
1100 ######################################################################
1105 # This transport is used for local delivery to user mailboxes. On debian
1106 # systems group mail is used so we can write to the /var/mail
1107 # directory. (The alternative, which most other unixes use, is to deliver
1108 # as the user's own group, into a sticky-bitted directory)
1111 file = /var/mail/${local_part}
1114 no_mode_fail_narrower
1117 # This transport is used for handling pipe addresses generated by alias
1118 # or .forward files. It has a conventional name, since it is not actually
1119 # mentioned elsewhere in this configuration file. (A different name *can*
1120 # be specified via the "address_pipe_transport" option if you really want
1121 # to.) If the pipe generates any standard output, it is returned to the sender
1122 # of the message as a delivery error. Set return_fail_output instead if you
1123 # want this to happen only when the pipe fails to complete normally.
1127 current_directory = ${home}
1128 environment = "EXTENSION=${substr_1:${local_part_suffix}}:\
1129 EXT=${substr_1:${local_part_suffix}}:\
1130 LOCAL=${local_part}${local_part_suffix}:\
1131 RECIPIENT=${local_part}${local_part_suffix}@${domain}"
1135 # This transport is used for handling file addresses generated by alias
1136 # or .forward files. It has a conventional name, since it is not actually
1137 # mentioned elsewhere in this configuration file.
1147 directory_mode = 0770
1148 mode_fail_narrower = false
1150 # This transport is used for handling file addresses generated by alias
1151 # or .forward files if the path ends in "/", which causes it to be treated
1152 # as a directory name rather than a file name. Each message is then delivered
1153 # to a unique file in the directory. If instead you want all such deliveries to
1154 # be in the "maildir" format that is used by some other mail software,
1155 # uncomment the final option below. If this is done, the directory specified
1156 # in the .forward or alias file is the base maildir directory.
1158 # Should you want to be able to specify either maildir or non-maildir
1159 # directory-style deliveries, then you must set up yet another transport,
1160 # called address_directory2. This is used if the path ends in "//" so should
1161 # be the one used for maildir, as the double slash suggests another level
1162 # of directory. In the absence of address_directory2, paths ending in //
1163 # are passed to address_directory.
1173 # This transport is used for handling autoreplies generated by the filtering
1174 # option of the forwardfile director. It has a conventional name, since it
1175 # is not actually mentioned elsewhere in this configuration file.
1179 # This transport is used for delivering messages over SMTP connections.
1183 connect_timeout = 1m
1185 tls_certificate = /etc/exim4/ssl/thishost.crt
1186 tls_privatekey = /etc/exim4/ssl/thishost.key
1189 remote_smtp_smarthost:
1190 debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1192 .ifdef SMARTHST_PORT
1193 port = SMARTHST_PORT
1196 tls_tempfail_tryclear = false
1197 tls_certificate = /etc/exim4/ssl/thishost.crt
1198 tls_privatekey = /etc/exim4/ssl/thishost.key
1201 # Send the message to procmail
1204 command = /usr/bin/procmail -a ${substr_1:${local_part_suffix}}}
1206 user = ${local_part}
1215 user = ${extract{user}{\
1216 ${lookup{$domain}partial-lsearch{/etc/exim4/bsmtp}\
1220 .ifdef HAVE_USER_DEBBUGS
1223 command = /org/bugs.debian.org/mail/run-procmail
1224 environment = "EXTENSION=${substr_1:${local_part_suffix}}:\
1225 EXT=${substr_1:${local_part_suffix}}:\
1226 LOCAL=${local_part}${local_part_suffix}:\
1227 RECIPIENT=${local_part}${local_part_suffix}@${domain}"
1234 debug_print = "T: rt_pipe for $local_part${local_part_suffix}@$domain"
1237 environment = EXTENSION=${substr_1:${local_part_suffix}}
1238 allow_commands = /usr/bin/rt-mailgate
1241 ######################################################################
1242 # RETRY CONFIGURATION #
1243 ######################################################################
1245 # This single retry rule applies to all domains and all errors. It specifies
1246 # retries every 15 minutes for 2 hours, then increasing retry intervals,
1247 # starting at 2 hours and increasing each time by a factor of 1.5, up to 16
1248 # hours, then retries every 8 hours until 4 days have passed since the first
1251 # Domain Error Retries
1252 # ------ ----- -------
1257 debian.org * F,2h,10m; G,16h,2h,1.5; F,14d,8h
1258 * * senders=: F,2h,10m
1259 * rcpt_4xx F,2h,5m; F,4h,10m; F,4d,15m
1260 * * F,2h,15m; G,16h,2h,1.5; F,4d,8h
1262 # End of Exim 4 configuration