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 # The division of files is designed so that all hosts may share rcpthosts
43 # and relayhosts, these could be replicated automatically if necessary.
45 # Exim's wildcard mechanism is a bit odd in that to say "any address in
46 # debian.org including debian.org" you must use two patterns,
49 # Also you can only place a * before a . and as the first char in a string.
50 # Wildcards always match last so they may be used as a catchall.
52 # Further details can be found in each of the files.
54 # Usefull exim commands:
55 # exim4 -qf - Try sending all messages right now, including frozen ones
56 # exim4 -bt foo@blah - Write what exim would do if it saw the address
57 # Great for testing virtual domains and forward files
59 # Special Features for users:
60 # .forward-foo - is understood as an extension address for bar-foo@cow.com
61 # .forward-default - is understood to be a catch all for bar-*@cow.com
62 # .procmailrc - with no .forward file invokes procmail for delivery
65 # For virtual domains the first lookup is done against a linear text
66 # database called 'aliases', then .forward files are consulted. Exim
67 # filtering is available for these .forward files only. .forward-default
68 # is the universal catch all for everything not handled.
70 # Heuristic check (none bad enough to cause a hard reject, but in aggregate
71 # will trigger things like rcpt to rate limiting or possibly a reject if
72 # enough hits are triggered.
74 # value is stored in acl_c1
76 ######################################################################
77 # MAIN CONFIGURATION SETTINGS #
78 ######################################################################
80 # These options specify the Access Control Lists (ACLs) that
81 # are used for incoming SMTP messages - after the RCPT and DATA
82 # commands, respectively.
84 acl_smtp_helo = check_helo
85 acl_smtp_rcpt = ${if ={$interface_port}{587} {check_submission}{check_recipient}}
86 acl_smtp_data = check_message
88 # accept domain literal syntax in e-mail addresses. To actually make use of
89 # this a router is also required
90 allow_domain_literals = true
92 # This setting defines a named domain list called
93 # local_domains. It will be referenced
94 # later on by the syntax "+local_domains".
95 # Other domain and host lists may follow.
96 # @ is the local FQDN, @[] matches the IP adress of any local interface.
98 .include_if_exists /etc/exim4/local-auto.conf
99 .include_if_exists /etc/exim4/local-settings.conf
101 domainlist local_domains = @ : \
104 ${if exists {/etc/exim4/locals}{lsearch;/etc/exim4/locals}}
106 domainlist virtual_domains = partial-lsearch;/etc/exim4/virtualdomains
108 domainlist submission_domains = ${if exists {/etc/exim4/submission-domains}{/etc/exim4/submission-domains}{}}
110 domainlist handled_domains = +local_domains : +virtual_domains
112 localpartlist local_only_users = lsearch;/etc/exim4/localusers
114 # Domains we relay for; that is domains that aren't considered local but we
115 # accept mail for them.
116 domainlist rcpthosts = partial-lsearch;/etc/exim4/rcpthosts
117 hostlist debianhosts = 127.0.0.1 : net-lsearch;/var/lib/misc/thishost/debianhosts
119 .ifndef RESERVEDADDRS
120 RESERVEDADDRS = 0.0.0.0/8 : 127.0.0.0/8 : 10.0.0.0/8 : 169.254.0.0/16 : \
121 172.16.0.0/12 : 192.0.0.0/17 : 192.168.0.0/16 : \
122 224.0.0.0/4 : 240.0.0.0/5 : 248.0.0.0/5
125 hostlist reservedaddrs = RESERVEDADDRS
128 tls_certificate = /etc/exim4/ssl/thishost.crt
129 tls_privatekey = /etc/exim4/ssl/thishost.key
130 tls_try_verify_hosts = *
131 tls_verify_certificates = /etc/exim4/ssl/ca.crt
132 tls_crl = /etc/exim4/ssl/ca.crl
135 #system_filter = /etc/exim4/filter
136 #system_filter_file_transport = address_file
138 # The setting below causes Exim to do a reverse DNS lookup on all incoming
139 # IP calls, in order to get the true host name. If you feel this is too
140 # expensive, you can specify the networks for which a lookup is done, or
141 # remove the setting entirely.
143 dns_ipv4_lookup = !localhost
145 # If this option is set, then any process that is running as one of the
146 # listed users may pass a message to Exim and specify the sender's
147 # address using the "-f" command line option, without Exim's adding a
150 #trusted_users = mail
151 #trusted_users = mail : www-data : ${if exists{/home/qa}{qa}{}}
152 untrusted_set_sender = *
154 # Some operating systems use the "gecos" field in the system password file
155 # to hold other information in addition to users' real names. Exim looks up
156 # this field when it is creating "sender" and "from" headers. If these options
157 # are set, exim uses "gecos_pattern" to parse the gecos field, and then
158 # expands "gecos_name" as the user's name. $1 etc refer to sub-fields matched
161 gecos_pattern = ^([^,:]*)
164 # This tells exim to immediately discard error messages (ie double bounces).
165 ignore_bounce_errors_after = 0s
167 timeout_frozen_after=14d
169 message_size_limit = 100M
171 smtp_accept_max = 300
172 smtp_accept_max_per_host = ${if match_ip {$sender_host_address}{+debianhosts}{0}{7}}
173 smtp_accept_queue = 200
174 smtp_accept_queue_per_connection = 50
175 smtp_accept_reserve = 25
176 smtp_reserve_hosts = +debianhosts
178 split_spool_directory = true
179 check_spool_inodes = 200
180 check_spool_space = 20M
185 deliver_queue_load_max = 50
187 queue_list_requires_admin = false
193 .ifdef HAVE_USER_DEBBUGS
194 daemon_smtp_ports = 25 : 587
198 remote_sort_domains = *.debian.org:*.debian.net
200 pipelining_advertise_hosts = !*
202 tls_advertise_hosts = *
204 smtp_enforce_sync = true
206 log_selector = +tls_cipher +tls_peerdn +queue_time +deliver_time +smtp_connection +smtp_incomplete_transaction +smtp_confirmation
210 VDOMAINDATA = ${lookup{$domain}partial-lsearch{/etc/exim4/virtualdomains}{$value}}
211 WHITELIST = ${if match_domain{$domain}{+virtual_domains}{\
212 ${if exists {/srv/$domain/mail/whitelist}{\
213 ${lookup{$local_part}lsearch{/srv/$domain/mail/whitelist}{$value}{}}\
215 }{${lookup{$local_part}lsearch{/etc/exim4/whitelist}{$value}{}} : ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-whitelist}{$value}{}}}}
216 GREYLIST_LOCAL_PARTS = ${if match_domain{$domain}{+virtual_domains}\
217 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}\
218 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}{$local_part}{}}}{}}}\
219 {${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}} : \
220 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}}}}
221 RT_QUEUE_MAP = /srv/rt.debian.org/mail/rt_queue_map
223 ######################################################################
224 # ACL CONFIGURATION #
225 ######################################################################
231 # These are in HELO acl so that they are only run once. They increment a counter,
232 # so we don't want it to increment per rcpt to.
234 warn dnslists = list.dnswl.org&0.0.0.3
235 log_message = Hit on list.dnswl.org for $sender_host_address
236 set acl_c1 = ${eval:$acl_c1-30}
238 warn dnslists = list.dnswl.org&0.0.0.2
239 log_message = Hit on list.dnswl.org for $sender_host_address
240 set acl_c1 = ${eval:$acl_c1-20}
242 warn dnslists = list.dnswl.org
243 log_message = Hit on list.dnswl.org for $sender_host_address
244 set acl_c1 = ${eval:$acl_c1-10}
246 warn condition = ${if isip {$sender_helo_name}{true}{false}}
247 log_message = remote host used IP address in HELO/EHLO greeting
248 set acl_c1 = ${eval:$acl_c1+20}
250 warn !hosts = +debianhosts
251 condition = ${if eq{$host_lookup_failed}{1}}
252 set acl_c1 = ${eval:$acl_c1+20}
254 warn !hosts = +debianhosts
255 condition = ${if eq{$host_lookup_failed}{0}}
256 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}}
257 set acl_c1 = ${eval:$acl_c1+20}
259 warn !hosts = +debianhosts
260 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}}
261 set acl_c1 = ${eval:$acl_c1+20}
263 warn !hosts = +debianhosts
264 dnslists = dul.dnsbl.sorbs.net
265 set acl_c1 = ${eval:$acl_c1+15}
267 # If the sender's helo name is empty, the message will be rejected later
268 # because the helo is empty. If the rDNS lookup failed, we are already
269 # going to greylist them, so no sense worrying about it here. Finally,
270 # if rDNS does not match helo name (both lower cased first), greylist.
272 warn !hosts = +debianhosts
273 condition = ${if eq {$host_lookup_failed}{1}{no}{yes}}
274 condition = ${if def:sender_helo_name {yes}{no}}
275 condition = ${if eq {${lc:$sender_helo_name}}{${lc:$sender_host_name}}{no}{yes}}
276 log_message = HELO doesn't match rDNS
277 set acl_c1 = ${eval:$acl_c1+8}
280 # matches 098325879 - looks fishy
282 warn condition = ${if and { \
283 { !match{$sender_helo_name}{\N^\[.+\]$\N} } \
284 { !match{$sender_helo_name}{\N^(?i)((?=[^-])[a-z0-9-]*[a-z0-9]\.)+[a-z]{2,6}$\N} } \
287 log_message = non-FQDN HELO
288 set acl_c1 = ${eval:$acl_c1+12}
290 # Matches DOMAIN99.com - looks bad
292 warn condition = ${if match {$sender_helo_name}{\N^[A-Z]+[A-Z0-9\-]+\.[A-Za-z0-9]+$\N}}
293 log_message = SHOUTING HELO
294 set acl_c1 = ${eval:$acl_c1+7}
296 # Random HELO (run of 7 consonants) (constructed by viruses). We purposefully
297 # skip matching on machines named .*smtp.*, since that's 4 already. This is a fairly
298 # naive test, so it's not worth much
300 warn condition = ${if match {${lc:$sender_helo_name}}{smtp}{no}{yes}}
301 condition = ${if match {${lc:$sender_helo_name}}{\N^[a-z0-9]+\.[a-z]+$\N}}
302 condition = ${if match {${lc:$sender_helo_name}}{\N.*[bcdfghjklmnpqrstvwxz]{7,}.*\.[a-z]+$\N}}
303 log_message = random HELO
304 set acl_c1 = ${eval:$acl_c1+5}
306 # Implicit, but simpler to just say it
309 #!!# ACL that is used after the RCPT command on the submission port
312 # Defer after too many bad RCPT TO's. Legit MTAs will retry later.
313 # This is a rough pass at preventing addres harvesting or other mail blasts.
315 defer log_message = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count
316 message = Too many bad recipients, try again later
317 condition = ${if > {${eval:$rcpt_fail_count}}{3}{yes}{no}}
320 ratelimit = 5 / 60m / per_rcpt / $sender_host_address
321 message = sorry, only 5 reports per hour for submission
323 accept domains = +submission_domains
325 message = unknown user
328 deny message = relay not permitted
330 #!!# ACL that is used after the RCPT command
333 # Defer after too many bad RCPT TO's. Legit MTAs will retry later.
334 # This is a rough pass at preventing addres harvesting or other mail blasts.
336 defer log_message = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count
337 message = Too many bad recipients, try again later
338 !hosts = +debianhosts
339 condition = ${if > {${eval:$rcpt_fail_count}}{3}{yes}{no}}
341 # Dump spambots that are so stupid they say helo as our IP address
343 drop !hosts = +debianhosts
344 condition = ${if eq {$sender_helo_name}{$interface_address}{yes}{no}}
345 message = HELO mismatch Forged HELO for ($sender_helo_name)
347 # Also for spambots that say helo as us or one of our domains
349 drop !hosts = +debianhosts
350 condition = ${if match_domain{$sender_helo_name}{$primary_hostname:+handled_domains}}
351 condition = ${if !match{$sender_host_name}{${rxquote:$sender_helo_name}\N$\N}}
352 message = HELO mismatch Forged HELO for ($sender_helo_name)
354 # This logic gives you a list of commonly forged domains in helo to reject against
356 warn set acl_m2 = ${lookup{$sender_helo_name} \
357 nwildlsearch{/etc/exim4/helo-check} \
358 {${if eq{$value}{}{$sender_helo_name}{$value}}}{}}
360 # This is a failsafe in case DNS fails - we defer instead of hard reject if they
361 # say helo as a name in the list but we can't look them up
363 defer !hosts = +debianhosts
364 condition = ${if eq{$acl_m2}{}{no}{yes}}
365 condition = ${if eq{$sender_host_name}{}{yes}{no}}
366 condition = ${if eq{$host_lookup_failed}{1}{no}{yes}}
367 message = Access temporarily denied. Resolve failed PTR for $sender_host_address
369 # If DNS works, go ahead and reject them
371 drop !hosts = +debianhosts
372 condition = ${if and { {!eq{$acl_m2}{}}{!match{$sender_host_name}{${rxquote:$acl_m2}\N$\N}}}{yes}{no}}
373 message = HELO mismatch Forged HELO for ($sender_helo_name)
375 # disabled accounts don't even get local mail.
376 deny local_parts = lsearch;/var/lib/misc/$primary_hostname/mail-disable
377 domains = +local_domains
378 message = ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-disable}{$value}}
380 deny domains = +virtual_domains
381 local_parts = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/localonly}}}\
382 {${extract{directory}{VDOMAINDATA}{${value}/localonly}}}\
384 hosts = !+debianhosts
385 message = mail for <$local_part@$domain> only accepted from debian.org machines
386 # Accept if the source is local SMTP (i.e. not over TCP/IP).
387 # We do this by testing for an empty sending host field.
390 deny domains = +handled_domains
391 local_parts = ^[.] : ^.*[@%!/|]
393 deny domains = !+handled_domains
394 local_parts = ^[./|] : ^.*[@%!] : ^.*/\\.\\./
396 # forwards mail to @d.o address, even if it's a bounce from master, no reply
397 # from source address; rejecting all mail now.
398 deny recipients = mendoza@debian.org
399 hosts = 65.110.39.147 : 64.39.31.15
400 message = <mendoza@kenny.linuxsis.net> cannot forward here while mailer-daemon mail is not caught
402 deny condition = ${lookup{$sender_address_local_part}lsearch{/etc/exim4/localusers}{true}}
403 sender_domains= +local_domains : debian.org : debian.net : debian.com
404 hosts = !+debianhosts
405 message = mail from <$sender_address> not allowed externally
407 deny condition = ${if match_domain{$sender_address_domain}{+virtual_domains}{1}{0}}
408 condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/neversenders}}}{1}{0}}
409 condition = ${if match_local_part {$sender_address_local_part}{${extract{directory}{VDOMAINDATA}{${value}/neversenders}}}{1}{0}}
410 message = no mail should ever come from <$sender_address>
412 deny local_parts = +local_only_users
413 domains = +local_domains
414 hosts = !+debianhosts
415 message = mail for $local_part is only accepted internally
417 deny message = address $sender_host_address is listed in $dnslist_domain; $dnslist_text
418 hosts = !+debianhosts
419 dnslists = rbl.debian.net : rbl.debian.net/$sender_address_domain
421 deny !recipients = survey@popcon.debian.org
424 defer !hosts = +debianhosts
425 condition = ${if >{${eval:$acl_c1}}{0}}
426 ratelimit = 10 / 60m / per_rcpt / $sender_host_address
427 message = slow down (no reverse dns, mismatched ehlo, dialup, or in blacklists)
430 # Check with policyd-weight - this only works with a version after etch's,
431 # sadly. etch's version attempts to hold the socket open, since that's what
432 # postfix expects. Exim, on the other hand, expects the remote side to close
433 # the socket when it's finished sending data, so it see each transaction as
434 # an incomplete read. I'm sure there's a way we could force exim to do
435 # something sick and clever to force either the interpretation or the socket
436 # closure, but I'm fairly sure it's now worth it, since the backport of
437 # policyd-weight is trivial.
438 warn !hosts = +debianhosts
439 set acl_m9 = ${readsocket{inet:127.0.0.1:12525}\
440 {request=smtpd_access_policy\n\
441 protocol_state=RCPT\n\
442 protocol_name=${uc:$received_protocol}\n\
443 helo_name=$sender_helo_name\n\
444 queue_id=$message_exim_id\n\
445 sender=$sender_address\n\
446 recipient=$local_part@$domain\n\
447 recipient_count=$rcpt_count\n\
448 client_address=$sender_host_address\n\
449 client_name=$sender_host_name\n\
450 reverse_client_name=$sender_host_name\n\
451 instance=$sender_host_address.$sender_address.$sender_helo_name\n\n}\
452 {20s}{\n}{socket failure}}
454 # Defer on socket error
455 defer !hosts = +debianhosts
456 condition = ${if eq{$acl_m9}{socket failure}{yes}{no}}
457 message = Cannot connect to policyd-weight. Please try again later.
459 # Set proposed action to $acl_m8 and message to $acl_m7
460 warn !hosts = +debianhosts
461 set acl_m8 = ${extract{action}{$acl_m9}}
462 set acl_m7 = ${sg{$acl_m9}{\Naction=[^ ]+ (.*)\n\n\N}{\$1}}
464 # Add X-policyd-weight header line to message
465 warn !hosts = +debianhosts
467 condition = ${if eq{$acl_m8}{PREPEND}{yes}{no}}
469 # Write log message, if policyd-weight can't run checks
470 warn !hosts = +debianhosts
471 log_message = policyd-weight message: $acl_m7
472 condition = ${if eq{$acl_m8}{DUNNO}{yes}{no}}
474 # Deny mails which policyd-weight thinks are spam
475 deny !hosts = +debianhosts
476 message = policyd-weight said: $acl_m7
477 condition = ${if eq{$acl_m8}{550}{yes}{no}}
479 # Defer messages when policyd-weight suggests so.
480 defer !hosts = +debianhosts
481 message = policyd-weight said: $acl_m7
482 condition = ${if eq{$acl_m8}{450}{yes}{no}}
485 warn recipients = survey@popcon.debian.org
486 set acl_m1 = PopconMail
488 warn domains = rt.debian.org
490 set acl_m12 = ${if def:acl_m12 {$acl_m12} {${if match{$local_part}{[^+]+\\+\\d+} {RTMailRecipientHasSubaddress}}}}
492 warn domains = packages.qa.debian.org
495 warn recipients = owner@packages.qa.debian.org : postmaster@packages.qa.debian.org
496 set acl_m1 = PTSOwner
498 warn recipients = change@db.debian.org : changes@db.debian.org : chpasswd@db.debian.org : ping@db.debian.org : recommend@nm.debian.org
499 set acl_m1 = DBSignedMail
502 domains = packages.qa.debian.org
503 condition = ${if match{$local_part}{\N^bounces+\N}}
504 set acl_m1 = PTSListBounce
506 .ifdef USE_GREYLISTING
509 message = $sender_host_address is not yet authorized to deliver mail from <$sender_address> to <$local_part@$domain>.
510 log_message = greylisted.
511 local_parts = ${if match_domain{$domain}{+virtual_domains}\
512 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}\
513 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}{$local_part}{}}}{}}}\
514 {${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}} : \
515 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}}}}
517 !hosts = : +debianhosts : WHITELIST : \
518 ${if exists {/etc/greylistd/whitelist-hosts}\
519 {/etc/greylistd/whitelist-hosts}{}} : \
520 ${if exists {/var/lib/greylistd/whitelist-hosts}\
521 {/var/lib/greylistd/whitelist-hosts}{}}
523 domains = +handled_domains : +rcpthosts
524 condition = ${readsocket{/var/run/greylistd/socket}\
526 $sender_host_address \
528 $local_part@$domain}\
532 # next three are greylisting, inspired by http://www.bebt.de/blog/debian/archives/2006/07/30/T06_12_27/index.html
533 # this adds acl_m4 if there isn't one (so unique per message)
536 !hosts = : +debianhosts : WHITELIST
537 condition = ${if def:acl_m4 {no}{yes}}
538 set acl_m4 = $pid.$tod_epoch.$sender_host_port
540 # and defers the message if postgrey thinks it should be defered ...
543 !hosts = : +debianhosts : WHITELIST
545 domains = +handled_domains : +rcpthosts
546 local_parts = GREYLIST_LOCAL_PARTS
547 set acl_m3 = request=smtpd_access_policy\n\
548 protocol_state=RCPT\n\
549 protocol_name=${uc:$received_protocol}\n\
550 instance=${acl_m4}\n\
551 helo_name=${sender_helo_name}\n\
552 client_address=${substr_-3:${mask:$sender_host_address/24}}\n\
553 client_name=${sender_host_name}\n\
554 sender=${sender_address}\n\
555 recipient=$local_part@$domain\n\n
557 ${readsocket{/var/run/postgrey/socket}{$acl_m3}\
558 {5s}{}{action=DUNNO}}\
560 message = ${sg{$acl_m3}{^\\w+\\s*}{}}
561 log_message = greylisted.
562 condition = ${if eq{${uc:${substr{0}{5}{$acl_m3}}}}{DEFER}}
564 # ... or adds a header with information about how long the delay was
567 !hosts = : +debianhosts : WHITELIST
569 domains = +handled_domains : +rcpthosts
570 local_parts = GREYLIST_LOCAL_PARTS
571 condition = ${if eq{${uc:${substr_0_7:$acl_m3}}}{PREPEND}}
572 message = ${sg{$acl_m3}{^\\w+\\s*}{}}
576 accept local_parts = postmaster
577 domains = +handled_domains : +rcpthosts
579 deny log_message = <$sender_address> is blacklisted
580 senders = ${if exists{/etc/exim4/blacklist}{/etc/exim4/blacklist}{}}
581 message = We have blacklisted <$sender_address>. Please stop mailing us
583 deny message = host $sender_host_address is listed in $dnslist_domain; see $dnslist_text
584 dnslists = ${if match_domain{$domain}{+virtual_domains}\
585 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/rbllist}}}\
586 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/rbllist}}}{$value}{}}}{}}}\
587 {${lookup{$local_part}lsearch{/etc/exim4/rbllist}{$value}{}} : \
588 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-rbl}{$value}{}}}}
589 domains = +handled_domains : +rcpthosts
590 !hosts = +debianhosts : WHITELIST
592 deny message = domain $sender_address_domain is listed in $dnslist_domain; see $dnslist_text
593 dnslists = ${if match_domain{$domain}{+virtual_domains}\
594 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/rhsbllist}}}\
595 {${expand:${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/rhsbllist}}}{$value}{}}}}{}}}\
596 {${expand:${lookup{$local_part}lsearch{/etc/exim4/rhsbllist}{$value}{}}} : \
597 ${expand:${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-rhsbl}{$value}{}}}}}
598 domains = +handled_domains : +rcpthosts
599 !hosts = +debianhosts : WHITELIST
601 deny domains = +handled_domains : +rcpthosts
602 local_parts = ${if match_domain{$domain}{+virtual_domains}\
603 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/callout_users}}}\
604 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/callout_users}}}{$local_part}{}}}{}}}\
605 {${lookup{$local_part}lsearch{/etc/exim4/callout_users}{$local_part}{}} : \
606 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-callout}{$local_part}{}}}}
607 !hosts = +debianhosts : WHITELIST
608 !verify = sender/callout
610 accept domains = +handled_domains
612 message = unknown user
613 verify = recipient/defer_ok
615 accept domains = +rcpthosts
617 message = unrouteable address
620 accept hosts = +debianhosts
622 accept authenticated = *
624 deny message = relay not permitted
626 #!!# ACL that is used after the DATA command
628 require verify = header_syntax
629 message = Invalid syntax in the header
631 deny condition = ${if eq {$acl_m1}{RTMail}}
632 condition = ${if and{{!match {${lc:$rh_Subject:}} {debian rt}} \
633 {!match {${lc:$rh_Subject:]}} {\\[rt.debian.org }} \
634 {!match {$acl_m12}{RTMailRecipientHasSubaddress}}}}
635 message = messages to the Request Tracker system require a subject tag or a subaddress
637 deny !hosts = +debianhosts : 217.196.43.134
638 condition = ${if eq {$acl_m1}{PTSMail}}
639 condition = ${if def:h_X-PTS-Approved:{false}{true}}
640 message = messages to the PTS require an X-PTS-Approved header
642 deny condition = ${if match {$message_body}{\Nhttp:\/\/[a-z\.-]+\/video1?.exe\N}}
643 message = Blackisted URI found in body
645 deny condition = ${if eq {$acl_m1}{DBSignedMail}}
646 condition = ${if and {{!match {$message_body}{PGP MESSAGE}} \
647 {!match {$message_body}{PGP SIGNED MESSAGE}} \
648 {!match {$message_body}{PGP SIGNATURE}} \
649 {!match {$header_content-type:}{multipart/signed}} \
650 {!match {$header_content-type:}{pgp}} \
653 message = Mail to this address needs to be PGP-signed
655 # RFC 822 and 2822 say that headers must be ASCII. This kinda emulates
656 # postfix's strict_7bit_headers option, but only checks a few common problem
657 # headers, as there doesn't appear to be an easy way to check them all.
659 condition = ${if or {{match {$rh_Subject:}{[\200-\377]}}\
660 {match {$rh_To:}{[\200-\377]}}\
661 {match {$rh_From:}{[\200-\377]}}\
662 {match {$rh_Cc:}{[\200-\377]}}}{true}{false}}
663 message = improper use of 8-bit data in message header: message rejected
666 condition = ${if match {$rh_Subject:}{[^[:print:]]\{8\}}{true}{false}}
667 message = Your mailer is not RFC 2047 compliant: message rejected
673 message = malware detected: $malware_name: message rejected
676 deny spam = $value/defer_ok
677 domains = +handled_domains : +rcpthosts
678 message = message got a spam score of $spam_score
679 local_parts = ${if exists {/etc/exim4/sa_users}\
680 {${if match_domain{$domain}{+virtual_domains}\
681 {${lookup{$local_part@$domain}nwildlsearch{/etc/exim4/sa_users}{$local_part}{}}}\
682 {${lookup{$local_part}lsearch{/etc/exim4/sa_users}{$local_part}{}}}}}}
684 # Check header_sender except for survey@popcon.d.o
685 deny condition = ${if eq{$acl_m1}{PopconMail}{false}{true}}
686 !verify = header_sender
687 message = No valid sender found in the From:, Sender: and Reply-to: headers
693 ######################################################################
694 # REWRITE CONFIGURATION #
695 ######################################################################
701 \N^buildd_(.*)@ries\.debian\.org$\N buildd_$1@buildd.debian.org T
702 \N^buildd_(.*)@klecker\.debian\.org$\N buildd_$1@buildd.debian.org T
703 *@debian.org ${lookup{$1}cdb{/var/lib/misc/${primary_hostname}/mail-forward.cdb}{$value}fail} T
704 *@people.debian.org ${lookup{$1}cdb{/var/lib/misc/${primary_hostname}/mail-forward.cdb}{$value}fail} T
705 #*@${primary_hostname} "${if exists{/etc/exim4/email-addresses}{${lookup{$1}lsearch{/etc/exim4/email-addresses}{$value}fail}}fail}" fFs
706 m68k@buildd.debian.org m68k-build@nocrew.org Ttrbc
709 #!!#######################################################!!#
710 #!!# Here follow routers created from the old routers, #!!#
711 #!!# for handling non-local domains. #!!#
712 #!!#######################################################!!#
718 ######################################################################
719 # ROUTERS CONFIGURATION #
720 # Specifies how addresses are handled #
721 ######################################################################
722 # ORDER DOES MATTER #
723 # An address is passed to each in turn until it is accepted. #
724 ######################################################################
727 debug_print = "R: bsmtp for $local_part@$domain"
729 domains = !+local_domains
730 require_files = /etc/exim4/bsmtp
731 route_list = * ${extract{file}{\
732 ${lookup{$domain}partial-lsearch{/etc/exim4/bsmtp}\
736 # This router routes to remote hosts over SMTP by explicit IP address,
737 # given as a "domain literal" in the form [nnn.nnn.nnn.nnn]. The RFCs
738 # require this facility, which is why it is enabled by default in Exim.
740 debug_print = "R: ipliteral for $local_part@$domain"
742 domains = !+handled_domains
743 transport = remote_smtp
744 ignore_target_hosts = +reservedaddrs
746 # This router routes to remote hosts over SMTP using a DNS lookup.
747 # Ignore reserved network responses, including localhost.
749 debug_print = "R: dnslookup for $local_part@$domain"
751 domains = !+handled_domains
752 transport = remote_smtp
753 ignore_target_hosts = +reservedaddrs
756 # This allows local delivery to be forced, avoiding alias files and
760 # debug_print = "R: real_local for $local_part@$domain"
763 # domains = lsearch;/etc/exim4/locals
764 # local_part_prefix = real-
765 # transport = local_delivery
767 # This router handles aliasing using a traditional /etc/aliases file.
768 # If any of your aliases expand to pipes or files, you will need to set
769 # up a user and a group for these deliveries to run under. You can do
770 # this by uncommenting the "user" option below (changing the user name
771 # as appropriate) and adding a "group" option if necessary.
774 debug_print = "R: system_aliases for $local_part@$domain"
778 data = ${lookup{$local_part}lsearch*{/etc/aliases}}
779 domains = +local_domains
780 file_transport = address_file
781 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
782 pipe_transport = address_pipe
785 # This router handles forwarding using traditional .forward files.
786 # It also allows mail filtering when a forward file starts with the
787 # string "# Exim filter": to disable filtering, uncomment the "filter"
788 # option. The check_ancestor option means that if the forward file
789 # generates an address that is an ancestor of the current one, the
790 # current one gets passed on instead. This covers the case where A is
791 # aliased to B and B has a .forward file pointing to A.
793 # For standard debian setup of one group per user, it is acceptable---normal
794 # even---for .forward to be group writable. If you have everyone in one
795 # group, you should comment out the "modemask" line. Without it, the exim
796 # default of 022 will apply, which is probably what you want.
799 debug_print = "R: userforward for $local_part${local_part_suffix}@$domain"
804 directory_transport = address_directory
805 domains = +local_domains
806 # filter - I have disabled filtering to force users to use .forward-foo files
807 # or procmail. This will make it easier to move mailers in the future
809 # This bit does the qmailesque extension names, foo-bar@ is .forward-foo it
810 # also checks if the .forward-bar exists, if not then it uses
811 # .forward-default instead.
812 file = $home/.forward\
813 ${if eq{}{$local_part_suffix}{}{\
814 ${if exists {${home}/.forward${local_part_suffix}} \
815 {${local_part_suffix}}{-default}}\
818 file_transport = address_file
819 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
820 local_part_suffix = -*
821 local_part_suffix_optional
823 pipe_transport = address_pipe
824 reply_transport = address_reply
825 require_files = $home
826 router_home_directory = ${lookup passwd{$local_part}{${extract{5}{:}{$value}}}fail}
830 debug_print = "R: userforward for $local_part${local_part_suffix}@$domain"
834 directory_transport = address_directory
835 domains = +local_domains
836 # filter - I have disabled filtering to force users to use .forward-foo files
837 # or procmail. This will make it easier to move mailers in the future
839 # This bit does the qmailesque extension names, foo-bar@ is .forward-foo it
840 # also checks if the .forward-bar exists, if not then it uses
841 # .forward-default instead.
842 file = $home/.forward\
843 ${if eq{}{$local_part_suffix}{}{\
844 ${if exists {${home}/.forward${local_part_suffix}} \
845 {${local_part_suffix}}{-default}}\
848 file_transport = address_file
849 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
850 local_part_suffix = -*
851 local_part_suffix_optional
853 pipe_transport = address_pipe
854 reply_transport = address_reply
855 require_files = $home
858 # This delivers to procmail
860 debug_print = "R: procmail for $local_part@$domain"
863 domains = +local_domains
864 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
867 require_files = $local_part:$home/.procmailrc
868 transport = procmail_pipe
869 transport_current_directory = $home
871 # This driver delivers to the LDAP generated alias file.
873 debug_print = "R: ldap_aliases for $local_part@$domain"
877 data = ${if exists{/var/lib/misc/$primary_hostname/mail-forward.cdb}\
878 {${lookup{$local_part}cdb\
879 {/var/lib/misc/$primary_hostname/mail-forward.cdb}}}}
880 domains = +local_domains
881 file_transport = address_file
882 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
883 pipe_transport = address_pipe
886 # This director matches local user mailboxes.
888 debug_print = "R: localuser for $local_part@$domain"
891 domains = +local_domains
892 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
893 # Disable if the user has never logged in
894 require_files = $home
895 transport = local_delivery
898 # Now we begin the Virtual Domain configuration
899 # Everything before here should apply only to the local domains with a
902 # exim4 fails the router if it can't change to the user/group for delivery
903 # during verification. So we have to seperate the cases of verifying
904 # the virts, and delivering to them. blah.
906 # This router delivers for packages.d.o
908 debug_print = "R: packages for $local_part@$domain"
910 file_transport = address_file
911 pipe_transport = address_pipe
912 domains = packages.debian.org
913 require_files = /org/packages.debian.org/conf/maintainer
914 data = ${lookup{$local_part}cdb{/org/packages.debian.org/conf/maintainer.cdb}}
915 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
916 transport_home_directory = /org/packages.debian.org/mail
917 transport_current_directory = /org/packages.debian.org/mail
922 .ifdef HAVE_USER_DEBBUGS
923 # This router delivers for bugs.d.o
925 debug_print = "R: bugs for $local_part@$domain"
927 transport = bugs_pipe
928 domains = bugs.debian.org
929 cannot_route_message = Unknown or archived bug
930 require_files = /org/bugs.debian.org/mail/run-procmail
932 local_parts = ${if match\
934 {\N^(\d+)(\d{2})(?:-(?:(?:submit|maintonly|quiet|forwarded|done|close|request|submitter)|(?:unsubscribe|ignore|(?:sub(?:scribe|help|yes|approve|reject))|unsubyes|bounce|probe|approve|reject|setlistyes|setlistsilentyes).*))?$\N}\
935 {${if exists{/org/bugs.debian.org/spool/db-h/$2/$1$2.summary}\
936 {$local_part}fail}}fail}
939 # This router delivers for rt.d.o
941 debug_print = "R: rt for $local_part@$domain"
943 domains = rt.debian.org
944 require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP
945 local_parts = ${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}}
946 local_part_suffix = +*
947 local_part_suffix_optional
948 pipe_transport = rt_pipe
949 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}}"
950 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
953 debug_print = "R: virt_aliases for $local_part@$domain"
956 ${extract{directory}{VDOMAINDATA}{${value}/aliases}}}\
957 {${lookup{$local_part}lsearch*{\
958 ${extract{directory}{VDOMAINDATA}{$value/aliases}}\
960 directory_transport = address_directory
961 cannot_route_message = Unknown user
962 domains = +virtual_domains
963 file_transport = address_file
964 pipe_transport = address_pipe
965 qualify_preserve_domain
967 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
968 transport_home_directory = ${extract{directory}{VDOMAINDATA}}
972 debug_print = "R: virt_direct for $local_part@$domain"
978 directory_transport = address_directory
979 domains = +virtual_domains
980 file = $home/.forward-\
981 ${if exists {${home}/.forward-${local_part}}{${local_part}}\
983 file_transport = address_file
984 pipe_transport = address_pipe
985 reply_transport = address_reply
987 router_home_directory = ${extract{directory}{VDOMAINDATA}}
988 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
991 # This is a senmailesque alias file lookup
993 debug_print = "R: virt_aliases for $local_part@$domain"
998 ${extract{directory}{VDOMAINDATA}{${value}/aliases}}}\
999 {${lookup{$local_part}lsearch*{\
1000 ${extract{directory}{VDOMAINDATA}{$value/aliases}}\
1002 directory_transport = address_directory
1003 domains = +virtual_domains
1004 file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}}
1005 cannot_route_message = Unknown user
1006 group = ${extract{group}{VDOMAINDATA}}
1007 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1008 pipe_transport = address_pipe
1009 qualify_preserve_domain
1010 retry_use_local_part
1011 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1012 transport_home_directory = ${extract{directory}{VDOMAINDATA}}
1014 user = ${extract{user}{VDOMAINDATA}}
1016 # This is a qmailesque deliver into a directory of .forward files
1018 debug_print = "R: virt_direct for $local_part@$domain"
1024 directory_transport = address_directory
1025 domains = +virtual_domains
1026 file = $home/.forward-\
1027 ${if exists {${home}/.forward-${local_part}}{${local_part}}\
1029 file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}}
1030 group = ${extract{group}{VDOMAINDATA}}
1031 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1033 pipe_transport = address_pipe
1034 reply_transport = address_reply
1035 retry_use_local_part
1036 router_home_directory = ${extract{directory}{VDOMAINDATA}}
1037 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1039 user = ${extract{user}{VDOMAINDATA}}
1040 #debug_print = .forward-${if exists {${home}/.forward-${local_part}} {${local_part}} {default}}
1042 ######################################################################
1043 # TRANSPORTS CONFIGURATION #
1044 ######################################################################
1045 # ORDER DOES NOT MATTER #
1046 # Only one appropriate transport is called for each delivery. #
1047 ######################################################################
1052 # This transport is used for local delivery to user mailboxes. On debian
1053 # systems group mail is used so we can write to the /var/mail
1054 # directory. (The alternative, which most other unixes use, is to deliver
1055 # as the user's own group, into a sticky-bitted directory)
1058 file = /var/mail/${local_part}
1061 no_mode_fail_narrower
1064 # This transport is used for handling pipe addresses generated by alias
1065 # or .forward files. It has a conventional name, since it is not actually
1066 # mentioned elsewhere in this configuration file. (A different name *can*
1067 # be specified via the "address_pipe_transport" option if you really want
1068 # to.) If the pipe generates any standard output, it is returned to the sender
1069 # of the message as a delivery error. Set return_fail_output instead if you
1070 # want this to happen only when the pipe fails to complete normally.
1074 current_directory = ${home}
1075 environment = "EXTENSION=${substr_1:${local_part_suffix}}:\
1076 EXT=${substr_1:${local_part_suffix}}:\
1077 LOCAL=${local_part}${local_part_suffix}:\
1078 RECIPIENT=${local_part}${local_part_suffix}@${domain}"
1082 # This transport is used for handling file addresses generated by alias
1083 # or .forward files. It has a conventional name, since it is not actually
1084 # mentioned elsewhere in this configuration file.
1094 directory_mode = 0770
1095 mode_fail_narrower = false
1097 # This transport is used for handling file addresses generated by alias
1098 # or .forward files if the path ends in "/", which causes it to be treated
1099 # as a directory name rather than a file name. Each message is then delivered
1100 # to a unique file in the directory. If instead you want all such deliveries to
1101 # be in the "maildir" format that is used by some other mail software,
1102 # uncomment the final option below. If this is done, the directory specified
1103 # in the .forward or alias file is the base maildir directory.
1105 # Should you want to be able to specify either maildir or non-maildir
1106 # directory-style deliveries, then you must set up yet another transport,
1107 # called address_directory2. This is used if the path ends in "//" so should
1108 # be the one used for maildir, as the double slash suggests another level
1109 # of directory. In the absence of address_directory2, paths ending in //
1110 # are passed to address_directory.
1120 # This transport is used for handling autoreplies generated by the filtering
1121 # option of the forwardfile director. It has a conventional name, since it
1122 # is not actually mentioned elsewhere in this configuration file.
1126 # This transport is used for delivering messages over SMTP connections.
1130 connect_timeout = 1m
1132 tls_tempfail_tryclear = true
1133 tls_certificate = /etc/exim4/ssl/thishost.crt
1134 tls_privatekey = /etc/exim4/ssl/thishost.key
1137 # Send the message to procmail
1140 command = /usr/bin/procmail -a ${substr_1:${local_part_suffix}}}
1142 user = ${local_part}
1151 user = ${extract{user}{\
1152 ${lookup{$domain}partial-lsearch{/etc/exim4/bsmtp}\
1156 .ifdef HAVE_USER_DEBBUGS
1159 command = /org/bugs.debian.org/mail/run-procmail
1160 environment = "EXTENSION=${substr_1:${local_part_suffix}}:\
1161 EXT=${substr_1:${local_part_suffix}}:\
1162 LOCAL=${local_part}${local_part_suffix}:\
1163 RECIPIENT=${local_part}${local_part_suffix}@${domain}"
1170 debug_print = "T: rt_pipe for $local_part${local_part_suffix}@$domain"
1173 environment = EXTENSION=${substr_1:${local_part_suffix}}
1174 allow_commands = /usr/bin/rt-mailgate
1177 ######################################################################
1178 # RETRY CONFIGURATION #
1179 ######################################################################
1181 # This single retry rule applies to all domains and all errors. It specifies
1182 # retries every 15 minutes for 2 hours, then increasing retry intervals,
1183 # starting at 2 hours and increasing each time by a factor of 1.5, up to 16
1184 # hours, then retries every 8 hours until 4 days have passed since the first
1187 # Domain Error Retries
1188 # ------ ----- -------
1193 debian.org * F,2h,10m; G,16h,2h,1.5; F,14d,8h
1194 * * senders=: F,2h,10m
1195 * rcpt_4xx F,2h,5m; F,4h,10m; F,4d,15m
1196 * * F,2h,15m; G,16h,2h,1.5; F,4d,8h
1198 # End of Exim 4 configuration