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
203 .ifdef EVEN_MORE_STUPID_FIREWALL
204 daemon_smtp_ports = 25 : 2025
208 remote_sort_domains = *.debian.org:*.debian.net
210 pipelining_advertise_hosts = !*
212 tls_advertise_hosts = *
214 smtp_enforce_sync = true
216 log_selector = +tls_cipher +tls_peerdn +queue_time +deliver_time +smtp_connection +smtp_incomplete_transaction +smtp_confirmation
220 VDOMAINDATA = ${lookup{$domain}partial-lsearch{/etc/exim4/virtualdomains}{$value}}
221 WHITELIST = ${if match_domain{$domain}{+virtual_domains}{\
222 ${if exists {/srv/$domain/mail/whitelist}{\
223 ${lookup{$local_part}lsearch{/srv/$domain/mail/whitelist}{$value}{}}\
225 }{${lookup{$local_part}lsearch{/etc/exim4/whitelist}{$value}{}} : ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-whitelist}{$value}{}}}}
226 GREYLIST_LOCAL_PARTS = ${if match_domain{$domain}{+virtual_domains}\
227 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}\
228 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}{$local_part}{}}}{}}}\
229 {${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}} : \
230 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}}}}
231 RT_QUEUE_MAP = /srv/rt.debian.org/mail/rt_queue_map
233 ######################################################################
234 # ACL CONFIGURATION #
235 ######################################################################
241 # These are in HELO acl so that they are only run once. They increment a counter,
242 # so we don't want it to increment per rcpt to.
244 warn dnslists = list.dnswl.org&0.0.0.3
245 log_message = Hit on list.dnswl.org for $sender_host_address
246 set acl_c1 = ${eval:$acl_c1-30}
248 warn dnslists = list.dnswl.org&0.0.0.2
249 log_message = Hit on list.dnswl.org for $sender_host_address
250 set acl_c1 = ${eval:$acl_c1-20}
252 warn dnslists = list.dnswl.org
253 log_message = Hit on list.dnswl.org for $sender_host_address
254 set acl_c1 = ${eval:$acl_c1-10}
256 warn condition = ${if isip {$sender_helo_name}{true}{false}}
257 log_message = remote host used IP address in HELO/EHLO greeting
258 set acl_c1 = ${eval:$acl_c1+20}
260 warn !hosts = +debianhosts
261 condition = ${if eq{$host_lookup_failed}{1}}
262 set acl_c1 = ${eval:$acl_c1+20}
264 warn !hosts = +debianhosts
265 condition = ${if eq{$host_lookup_failed}{0}}
266 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}}
267 set acl_c1 = ${eval:$acl_c1+20}
269 warn !hosts = +debianhosts
270 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}}
271 set acl_c1 = ${eval:$acl_c1+20}
273 warn !hosts = +debianhosts
274 dnslists = dul.dnsbl.sorbs.net
275 set acl_c1 = ${eval:$acl_c1+15}
277 # If the sender's helo name is empty, the message will be rejected later
278 # because the helo is empty. If the rDNS lookup failed, we are already
279 # going to greylist them, so no sense worrying about it here. Finally,
280 # if rDNS does not match helo name (both lower cased first), greylist.
282 warn !hosts = +debianhosts
283 condition = ${if eq {$host_lookup_failed}{1}{no}{yes}}
284 condition = ${if def:sender_helo_name {yes}{no}}
285 condition = ${if eq {${lc:$sender_helo_name}}{${lc:$sender_host_name}}{no}{yes}}
286 log_message = HELO doesn't match rDNS
287 set acl_c1 = ${eval:$acl_c1+8}
290 # matches 098325879 - looks fishy
292 warn condition = ${if and { \
293 { !match{$sender_helo_name}{\N^\[.+\]$\N} } \
294 { !match{$sender_helo_name}{\N^(?i)((?=[^-])[a-z0-9-]*[a-z0-9]\.)+[a-z]{2,6}$\N} } \
297 log_message = non-FQDN HELO
298 set acl_c1 = ${eval:$acl_c1+12}
300 # Matches DOMAIN99.com - looks bad
302 warn condition = ${if match {$sender_helo_name}{\N^[A-Z]+[A-Z0-9\-]+\.[A-Za-z0-9]+$\N}}
303 log_message = SHOUTING HELO
304 set acl_c1 = ${eval:$acl_c1+7}
306 # Random HELO (run of 7 consonants) (constructed by viruses). We purposefully
307 # skip matching on machines named .*smtp.*, since that's 4 already. This is a fairly
308 # naive test, so it's not worth much
310 warn condition = ${if match {${lc:$sender_helo_name}}{smtp}{no}{yes}}
311 condition = ${if match {${lc:$sender_helo_name}}{\N^[a-z0-9]+\.[a-z]+$\N}}
312 condition = ${if match {${lc:$sender_helo_name}}{\N.*[bcdfghjklmnpqrstvwxz]{7,}.*\.[a-z]+$\N}}
313 log_message = random HELO
314 set acl_c1 = ${eval:$acl_c1+5}
316 # Implicit, but simpler to just say it
319 #!!# ACL that is used after the RCPT command on the submission port
322 # Accept if the source is local SMTP (i.e. not over TCP/IP).
323 # We do this by testing for an empty sending host field.
324 accept hosts = : 127.0.0.1
325 # Defer after too many bad RCPT TO's. Legit MTAs will retry later.
326 # This is a rough pass at preventing addres harvesting or other mail blasts.
329 accept verify = certificate
332 defer log_message = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count
333 message = Too many bad recipients, try again later
334 condition = ${if > {${eval:$rcpt_fail_count}}{3}{yes}{no}}
337 ratelimit = 5 / 60m / per_rcpt / $sender_host_address
338 !hosts = +debianhosts
339 message = sorry, only 5 reports per hour for submission
341 accept domains = +local_domains
344 message = unknown user
347 accept domains = +mailhubdomains
349 message = unknown user
350 verify = recipient/callout=30s,defer_ok,use_sender,no_cache
352 accept domains = +submission_domains
354 message = unknown user
357 deny message = relay not permitted
359 #!!# ACL that is used after the RCPT command
363 accept verify = certificate
366 # Defer after too many bad RCPT TO's. Legit MTAs will retry later.
367 # This is a rough pass at preventing addres harvesting or other mail blasts.
369 defer log_message = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count
370 message = Too many bad recipients, try again later
371 !hosts = +debianhosts
372 condition = ${if > {${eval:$rcpt_fail_count}}{3}{yes}{no}}
374 # Dump spambots that are so stupid they say helo as our IP address
376 drop !hosts = +debianhosts
377 condition = ${if eq {$sender_helo_name}{$interface_address}{yes}{no}}
378 message = HELO mismatch Forged HELO for ($sender_helo_name)
380 # Also for spambots that say helo as us or one of our domains
382 drop !hosts = +debianhosts
383 condition = ${if match_domain{$sender_helo_name}{$primary_hostname:+handled_domains}}
384 condition = ${if !match{$sender_host_name}{${rxquote:$sender_helo_name}\N$\N}}
385 message = HELO mismatch Forged HELO for ($sender_helo_name)
387 # This logic gives you a list of commonly forged domains in helo to reject against
389 warn set acl_m2 = ${lookup{$sender_helo_name} \
390 nwildlsearch{/etc/exim4/helo-check} \
391 {${if eq{$value}{}{$sender_helo_name}{$value}}}{}}
393 # This is a failsafe in case DNS fails - we defer instead of hard reject if they
394 # say helo as a name in the list but we can't look them up
396 defer !hosts = +debianhosts
397 condition = ${if eq{$acl_m2}{}{no}{yes}}
398 condition = ${if eq{$sender_host_name}{}{yes}{no}}
399 condition = ${if eq{$host_lookup_failed}{1}{no}{yes}}
400 message = Access temporarily denied. Resolve failed PTR for $sender_host_address
402 # If DNS works, go ahead and reject them
404 drop !hosts = +debianhosts
405 condition = ${if and { {!eq{$acl_m2}{}}{!match{$sender_host_name}{${rxquote:$acl_m2}\N$\N}}}{yes}{no}}
406 message = HELO mismatch Forged HELO for ($sender_helo_name)
408 # disabled accounts don't even get local mail.
409 deny local_parts = lsearch;/var/lib/misc/$primary_hostname/mail-disable
410 domains = +local_domains
411 message = ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-disable}{$value}}
413 deny domains = +virtual_domains
414 local_parts = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/localonly}}}\
415 {${extract{directory}{VDOMAINDATA}{${value}/localonly}}}\
417 hosts = !+debianhosts
418 message = mail for <$local_part@$domain> only accepted from debian.org machines
419 # Accept if the source is local SMTP (i.e. not over TCP/IP).
420 # We do this by testing for an empty sending host field.
423 deny domains = +handled_domains
424 local_parts = ^[.] : ^.*[@%!/|]
426 deny domains = !+handled_domains
427 local_parts = ^[./|] : ^.*[@%!] : ^.*/\\.\\./
429 # forwards mail to @d.o address, even if it's a bounce from master, no reply
430 # from source address; rejecting all mail now.
431 deny recipients = mendoza@debian.org
432 hosts = 65.110.39.147 : 64.39.31.15
433 message = <mendoza@kenny.linuxsis.net> cannot forward here while mailer-daemon mail is not caught
435 deny condition = ${lookup{$sender_address_local_part}lsearch{/etc/exim4/localusers}{true}}
436 sender_domains= +local_domains : debian.org : debian.net : debian.com
437 hosts = !+debianhosts
438 message = mail from <$sender_address> not allowed externally
440 deny condition = ${if match_domain{$sender_address_domain}{+virtual_domains}{1}{0}}
441 condition = ${if exists {${extract{directory}{VDOMAINDATA}{${value}/neversenders}}}{1}{0}}
442 condition = ${if match_local_part {$sender_address_local_part}{${extract{directory}{VDOMAINDATA}{${value}/neversenders}}}{1}{0}}
443 message = no mail should ever come from <$sender_address>
445 deny local_parts = +local_only_users
446 domains = +local_domains
447 hosts = !+debianhosts
448 message = mail for $local_part is only accepted internally
450 deny message = address $sender_host_address is listed in $dnslist_domain; $dnslist_text
451 hosts = !+debianhosts
452 dnslists = rbl.debian.net : rbl.debian.net/$sender_address_domain
454 deny !recipients = survey@popcon.debian.org
457 defer !hosts = +debianhosts
458 condition = ${if >{${eval:$acl_c1}}{0}}
459 ratelimit = 10 / 60m / per_rcpt / $sender_host_address
460 message = slow down (no reverse dns, mismatched ehlo, dialup, or in blacklists)
463 # Check with policyd-weight - this only works with a version after etch's,
464 # sadly. etch's version attempts to hold the socket open, since that's what
465 # postfix expects. Exim, on the other hand, expects the remote side to close
466 # the socket when it's finished sending data, so it see each transaction as
467 # an incomplete read. I'm sure there's a way we could force exim to do
468 # something sick and clever to force either the interpretation or the socket
469 # closure, but I'm fairly sure it's now worth it, since the backport of
470 # policyd-weight is trivial.
471 warn !hosts = +debianhosts
472 set acl_m9 = ${readsocket{inet:127.0.0.1:12525}\
473 {request=smtpd_access_policy\n\
474 protocol_state=RCPT\n\
475 protocol_name=${uc:$received_protocol}\n\
476 helo_name=$sender_helo_name\n\
477 queue_id=$message_exim_id\n\
478 sender=$sender_address\n\
479 recipient=$local_part@$domain\n\
480 recipient_count=$rcpt_count\n\
481 client_address=$sender_host_address\n\
482 client_name=$sender_host_name\n\
483 reverse_client_name=$sender_host_name\n\
484 instance=$sender_host_address.$sender_address.$sender_helo_name\n\n}\
485 {20s}{\n}{socket failure}}
487 # Defer on socket error
488 defer !hosts = +debianhosts
489 condition = ${if eq{$acl_m9}{socket failure}{yes}{no}}
490 message = Cannot connect to policyd-weight. Please try again later.
492 # Set proposed action to $acl_m8 and message to $acl_m7
493 warn !hosts = +debianhosts
494 set acl_m8 = ${extract{action}{$acl_m9}}
495 set acl_m7 = ${sg{$acl_m9}{\Naction=[^ ]+ (.*)\n\n\N}{\$1}}
497 # Add X-policyd-weight header line to message
498 warn !hosts = +debianhosts
500 condition = ${if eq{$acl_m8}{PREPEND}{yes}{no}}
502 # Write log message, if policyd-weight can't run checks
503 warn !hosts = +debianhosts
504 log_message = policyd-weight message: $acl_m7
505 condition = ${if eq{$acl_m8}{DUNNO}{yes}{no}}
507 # Deny mails which policyd-weight thinks are spam
508 deny !hosts = +debianhosts
509 message = policyd-weight said: $acl_m7
510 condition = ${if eq{$acl_m8}{550}{yes}{no}}
512 # Defer messages when policyd-weight suggests so.
513 defer !hosts = +debianhosts
514 message = policyd-weight said: $acl_m7
515 condition = ${if eq{$acl_m8}{450}{yes}{no}}
518 warn recipients = survey@popcon.debian.org
519 set acl_m1 = PopconMail
521 warn domains = rt.debian.org
523 set acl_m12 = ${if def:acl_m12 {$acl_m12} {${if or{{match{$local_part}{[^+]+\\+\\d+}}{match{$local_part}{[^+]+\\+new}}} {RTMailRecipientHasSubaddress}}}}
525 warn domains = packages.qa.debian.org
528 warn recipients = owner@packages.qa.debian.org : postmaster@packages.qa.debian.org
529 set acl_m1 = PTSOwner
531 warn recipients = change@db.debian.org : changes@db.debian.org : chpasswd@db.debian.org : ping@db.debian.org : recommend@nm.debian.org
532 set acl_m1 = DBSignedMail
535 domains = packages.qa.debian.org
536 condition = ${if match{$local_part}{\N^bounces+\N}}
537 set acl_m1 = PTSListBounce
539 .ifdef USE_GREYLISTING
542 message = $sender_host_address is not yet authorized to deliver mail from <$sender_address> to <$local_part@$domain>.
543 log_message = greylisted.
544 local_parts = ${if match_domain{$domain}{+virtual_domains}\
545 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}\
546 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}{$local_part}{}}}{}}}\
547 {${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}} : \
548 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}}}}
550 !hosts = : +debianhosts : WHITELIST : \
551 ${if exists {/etc/greylistd/whitelist-hosts}\
552 {/etc/greylistd/whitelist-hosts}{}} : \
553 ${if exists {/var/lib/greylistd/whitelist-hosts}\
554 {/var/lib/greylistd/whitelist-hosts}{}}
556 domains = +handled_domains : +rcpthosts
557 condition = ${readsocket{/var/run/greylistd/socket}\
559 $sender_host_address \
561 $local_part@$domain}\
565 # next three are greylisting, inspired by http://www.bebt.de/blog/debian/archives/2006/07/30/T06_12_27/index.html
566 # this adds acl_m4 if there isn't one (so unique per message)
569 !hosts = : +debianhosts : WHITELIST
570 condition = ${if def:acl_m4 {no}{yes}}
571 set acl_m4 = $pid.$tod_epoch.$sender_host_port
573 # and defers the message if postgrey thinks it should be defered ...
576 !hosts = : +debianhosts : WHITELIST
578 domains = +handled_domains : +rcpthosts
579 local_parts = GREYLIST_LOCAL_PARTS
580 set acl_m3 = request=smtpd_access_policy\n\
581 protocol_state=RCPT\n\
582 protocol_name=${uc:$received_protocol}\n\
583 instance=${acl_m4}\n\
584 helo_name=${sender_helo_name}\n\
585 client_address=${substr_-3:${mask:$sender_host_address/24}}\n\
586 client_name=${sender_host_name}\n\
587 sender=${sender_address}\n\
588 recipient=$local_part@$domain\n\n
590 ${readsocket{/var/run/postgrey/socket}{$acl_m3}\
591 {5s}{}{action=DUNNO}}\
593 message = ${sg{$acl_m3}{^\\w+\\s*}{}}
594 log_message = greylisted.
595 condition = ${if eq{${uc:${substr{0}{5}{$acl_m3}}}}{DEFER}}
597 # ... or adds a header with information about how long the delay was
600 !hosts = : +debianhosts : WHITELIST
602 domains = +handled_domains : +rcpthosts
603 local_parts = GREYLIST_LOCAL_PARTS
604 condition = ${if eq{${uc:${substr_0_7:$acl_m3}}}{PREPEND}}
605 message = ${sg{$acl_m3}{^\\w+\\s*}{}}
609 accept local_parts = postmaster
610 domains = +handled_domains : +rcpthosts
612 deny log_message = <$sender_address> is blacklisted
613 senders = ${if exists{/etc/exim4/blacklist}{/etc/exim4/blacklist}{}}
614 message = We have blacklisted <$sender_address>. Please stop mailing us
616 deny message = host $sender_host_address is listed in $dnslist_domain; see $dnslist_text
617 dnslists = ${if match_domain{$domain}{+virtual_domains}\
618 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/rbllist}}}\
619 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/rbllist}}}{$value}{}}}{}}}\
620 {${lookup{$local_part}lsearch{/etc/exim4/rbllist}{$value}{}} : \
621 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-rbl}{$value}{}}}}
622 domains = +handled_domains : +rcpthosts
623 !hosts = +debianhosts : WHITELIST
625 deny message = domain $sender_address_domain is listed in $dnslist_domain; see $dnslist_text
626 dnslists = ${if match_domain{$domain}{+virtual_domains}\
627 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/rhsbllist}}}\
628 {${expand:${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/rhsbllist}}}{$value}{}}}}{}}}\
629 {${expand:${lookup{$local_part}lsearch{/etc/exim4/rhsbllist}{$value}{}}} : \
630 ${expand:${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-rhsbl}{$value}{}}}}}
631 domains = +handled_domains : +rcpthosts
632 !hosts = +debianhosts : WHITELIST
634 deny domains = +handled_domains : +rcpthosts
635 local_parts = ${if match_domain{$domain}{+virtual_domains}\
636 {${if exists {${extract{directory}{VDOMAINDATA}{${value}/callout_users}}}\
637 {${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/callout_users}}}{$local_part}{}}}{}}}\
638 {${lookup{$local_part}lsearch{/etc/exim4/callout_users}{$local_part}{}} : \
639 ${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-callout}{$local_part}{}}}}
640 !hosts = +debianhosts : WHITELIST
641 !verify = sender/callout
643 accept domains = +mailhubdomains
645 message = unknown user
646 verify = recipient/callout=30s,defer_ok,use_sender,no_cache
648 accept domains = +handled_domains
650 message = unknown user
651 verify = recipient/defer_ok
653 accept domains = +rcpthosts
655 message = unrouteable address
658 accept hosts = +debianhosts
660 accept authenticated = *
662 deny message = relay not permitted
664 #!!# ACL that is used after the DATA command
666 require verify = header_syntax
667 message = Invalid syntax in the header
669 deny condition = ${if eq {$acl_m1}{RTMail}}
670 condition = ${if and{{!match {${lc:$rh_Subject:}} {debian rt}} \
671 {!match {${lc:$rh_Subject:]}} {\\[rt.debian.org }} \
672 {!match {$acl_m12}{RTMailRecipientHasSubaddress}}}}
673 message = messages to the Request Tracker system require a subject tag or a subaddress
675 deny !hosts = +debianhosts : 217.196.43.134
676 condition = ${if eq {$acl_m1}{PTSMail}}
677 condition = ${if def:h_X-PTS-Approved:{false}{true}}
678 message = messages to the PTS require an X-PTS-Approved header
680 deny condition = ${if match {$message_body}{\Nhttp:\/\/[a-z\.-]+\/video1?.exe\N}}
681 message = Blackisted URI found in body
683 deny condition = ${if eq {$acl_m1}{DBSignedMail}}
684 condition = ${if and {{!match {$message_body}{PGP MESSAGE}} \
685 {!match {$message_body}{PGP SIGNED MESSAGE}} \
686 {!match {$message_body}{PGP SIGNATURE}} \
687 {!match {$header_content-type:}{multipart/signed}} \
688 {!match {$header_content-type:}{pgp}} \
691 message = Mail to this address needs to be PGP-signed
693 # RFC 822 and 2822 say that headers must be ASCII. This kinda emulates
694 # postfix's strict_7bit_headers option, but only checks a few common problem
695 # headers, as there doesn't appear to be an easy way to check them all.
697 condition = ${if or {{match {$rh_Subject:}{[\200-\377]}}\
698 {match {$rh_To:}{[\200-\377]}}\
699 {match {$rh_From:}{[\200-\377]}}\
700 {match {$rh_Cc:}{[\200-\377]}}}{true}{false}}
701 message = improper use of 8-bit data in message header: message rejected
704 condition = ${if match {$rh_Subject:}{[^[:print:]]\{8\}}{true}{false}}
705 message = Your mailer is not RFC 2047 compliant: message rejected
711 message = malware detected: $malware_name: message rejected
714 deny spam = $value/defer_ok
715 domains = +handled_domains : +rcpthosts
716 message = message got a spam score of $spam_score
717 local_parts = ${if exists {/etc/exim4/sa_users}\
718 {${if match_domain{$domain}{+virtual_domains}\
719 {${lookup{$local_part@$domain}nwildlsearch{/etc/exim4/sa_users}{$local_part}{}}}\
720 {${lookup{$local_part}lsearch{/etc/exim4/sa_users}{$local_part}{}}}}}}
722 # Check header_sender except for survey@popcon.d.o
723 deny condition = ${if eq{$acl_m1}{PopconMail}{false}{true}}
724 !verify = header_sender
725 message = No valid sender found in the From:, Sender: and Reply-to: headers
731 ######################################################################
732 # REWRITE CONFIGURATION #
733 ######################################################################
739 \N^buildd_(.*)@ries\.debian\.org$\N buildd_$1@buildd.debian.org T
740 \N^buildd_(.*)@klecker\.debian\.org$\N buildd_$1@buildd.debian.org T
741 *@debian.org ${lookup{$1}cdb{/var/lib/misc/${primary_hostname}/mail-forward.cdb}{$value}fail} T
742 *@people.debian.org ${lookup{$1}cdb{/var/lib/misc/${primary_hostname}/mail-forward.cdb}{$value}fail} T
743 #*@${primary_hostname} "${if exists{/etc/exim4/email-addresses}{${lookup{$1}lsearch{/etc/exim4/email-addresses}{$value}fail}}fail}" fFs
744 m68k@buildd.debian.org m68k-build@nocrew.org Ttrbc
747 #!!#######################################################!!#
748 #!!# Here follow routers created from the old routers, #!!#
749 #!!# for handling non-local domains. #!!#
750 #!!#######################################################!!#
756 ######################################################################
757 # ROUTERS CONFIGURATION #
758 # Specifies how addresses are handled #
759 ######################################################################
760 # ORDER DOES MATTER #
761 # An address is passed to each in turn until it is accepted. #
762 ######################################################################
766 domains = +mailhubdomains
767 transport = remote_smtp
768 route_data = ${lookup{$domain}lsearch{/etc/exim4/manualroute}}
769 require_files = /etc/exim4/manualroute
772 debug_print = "R: bsmtp for $local_part@$domain"
774 domains = !+local_domains
775 require_files = /etc/exim4/bsmtp
776 route_list = * ${extract{file}{\
777 ${lookup{$domain}partial-lsearch{/etc/exim4/bsmtp}\
781 # This router routes to remote hosts over SMTP by explicit IP address,
782 # given as a "domain literal" in the form [nnn.nnn.nnn.nnn]. The RFCs
783 # require this facility, which is why it is enabled by default in Exim.
785 debug_print = "R: ipliteral for $local_part@$domain"
787 domains = !+handled_domains
788 transport = remote_smtp
789 ignore_target_hosts = +reservedaddrs
793 debug_print = "R: smarthost for $local_part@$domain"
795 domains = !+handled_domains
796 transport = remote_smtp_smarthost
797 route_list = * SMARTHOST
798 host_find_failed = defer
799 same_domain_copy_routing = yes
802 # This router routes to remote hosts over SMTP using a DNS lookup.
803 # Ignore reserved network responses, including localhost.
805 debug_print = "R: dnslookup for $local_part@$domain"
807 domains = !+handled_domains
808 transport = remote_smtp
809 ignore_target_hosts = +reservedaddrs
812 # This allows local delivery to be forced, avoiding alias files and
816 # debug_print = "R: real_local for $local_part@$domain"
819 # domains = lsearch;/etc/exim4/locals
820 # local_part_prefix = real-
821 # transport = local_delivery
823 # This router handles aliasing using a traditional /etc/aliases file.
824 # If any of your aliases expand to pipes or files, you will need to set
825 # up a user and a group for these deliveries to run under. You can do
826 # this by uncommenting the "user" option below (changing the user name
827 # as appropriate) and adding a "group" option if necessary.
830 debug_print = "R: system_aliases for $local_part@$domain"
834 data = ${lookup{$local_part}lsearch*{/etc/aliases}}
835 domains = +local_domains
836 file_transport = address_file
837 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
838 pipe_transport = address_pipe
841 # This router handles forwarding using traditional .forward files.
842 # It also allows mail filtering when a forward file starts with the
843 # string "# Exim filter": to disable filtering, uncomment the "filter"
844 # option. The check_ancestor option means that if the forward file
845 # generates an address that is an ancestor of the current one, the
846 # current one gets passed on instead. This covers the case where A is
847 # aliased to B and B has a .forward file pointing to A.
849 # For standard debian setup of one group per user, it is acceptable---normal
850 # even---for .forward to be group writable. If you have everyone in one
851 # group, you should comment out the "modemask" line. Without it, the exim
852 # default of 022 will apply, which is probably what you want.
855 debug_print = "R: userforward for $local_part${local_part_suffix}@$domain"
860 directory_transport = address_directory
861 domains = +local_domains
862 # filter - I have disabled filtering to force users to use .forward-foo files
863 # or procmail. This will make it easier to move mailers in the future
865 # This bit does the qmailesque extension names, foo-bar@ is .forward-foo it
866 # also checks if the .forward-bar exists, if not then it uses
867 # .forward-default instead.
868 file = $home/.forward\
869 ${if eq{}{$local_part_suffix}{}{\
870 ${if exists {${home}/.forward${local_part_suffix}} \
871 {${local_part_suffix}}{-default}}\
874 file_transport = address_file
875 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
876 local_part_suffix = -*
877 local_part_suffix_optional
879 pipe_transport = address_pipe
880 reply_transport = address_reply
881 require_files = $home
882 router_home_directory = ${lookup passwd{$local_part}{${extract{5}{:}{$value}}}fail}
886 debug_print = "R: userforward for $local_part${local_part_suffix}@$domain"
890 directory_transport = address_directory
891 domains = +local_domains
892 # filter - I have disabled filtering to force users to use .forward-foo files
893 # or procmail. This will make it easier to move mailers in the future
895 # This bit does the qmailesque extension names, foo-bar@ is .forward-foo it
896 # also checks if the .forward-bar exists, if not then it uses
897 # .forward-default instead.
898 file = $home/.forward\
899 ${if eq{}{$local_part_suffix}{}{\
900 ${if exists {${home}/.forward${local_part_suffix}} \
901 {${local_part_suffix}}{-default}}\
904 file_transport = address_file
905 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
906 local_part_suffix = -*
907 local_part_suffix_optional
909 pipe_transport = address_pipe
910 reply_transport = address_reply
911 require_files = $home
914 # This delivers to procmail
916 debug_print = "R: procmail for $local_part@$domain"
919 domains = +local_domains
920 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
923 require_files = $local_part:$home/.procmailrc
924 transport = procmail_pipe
925 transport_current_directory = $home
927 # This driver delivers to the LDAP generated alias file.
929 debug_print = "R: ldap_aliases for $local_part@$domain"
933 data = ${if exists{/var/lib/misc/$primary_hostname/mail-forward.cdb}\
934 {${lookup{$local_part}cdb\
935 {/var/lib/misc/$primary_hostname/mail-forward.cdb}}}}
936 domains = +local_domains
937 file_transport = address_file
938 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
939 pipe_transport = address_pipe
942 # This director matches local user mailboxes.
944 debug_print = "R: localuser for $local_part@$domain"
947 domains = +local_domains
948 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
949 # Disable if the user has never logged in
950 require_files = $home
951 transport = local_delivery
954 # Now we begin the Virtual Domain configuration
955 # Everything before here should apply only to the local domains with a
958 # exim4 fails the router if it can't change to the user/group for delivery
959 # during verification. So we have to seperate the cases of verifying
960 # the virts, and delivering to them. blah.
962 # This router delivers for packages.d.o
964 debug_print = "R: packages for $local_part@$domain"
966 file_transport = address_file
967 pipe_transport = address_pipe
968 domains = packages.debian.org
969 require_files = /org/packages.debian.org/conf/maintainer
970 data = ${lookup{$local_part}cdb{/org/packages.debian.org/conf/maintainer.cdb}}
971 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
972 transport_home_directory = /org/packages.debian.org/mail
973 transport_current_directory = /org/packages.debian.org/mail
978 .ifdef HAVE_USER_DEBBUGS
979 # This router delivers for bugs.d.o
981 debug_print = "R: bugs for $local_part@$domain"
983 transport = bugs_pipe
984 domains = bugs.debian.org
985 cannot_route_message = Unknown or archived bug
986 require_files = /org/bugs.debian.org/mail/run-procmail
988 local_parts = ${if match\
990 {\N^(\d+)(\d{2})(?:-(?:(?:submit|maintonly|quiet|forwarded|done|close|request|submitter)|(?:unsubscribe|ignore|(?:sub(?:scribe|help|yes|approve|reject))|unsubyes|bounce|probe|approve|reject|setlistyes|setlistsilentyes).*))?$\N}\
991 {${if exists{/org/bugs.debian.org/spool/db-h/$2/$1$2.summary}\
992 {$local_part}fail}}fail}
995 # This router delivers for rt.d.o
997 debug_print = "R: rt for $local_part+new@$domain"
999 domains = rt.debian.org
1000 require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP
1001 local_parts = ${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}}
1002 local_part_suffix = +new
1003 pipe_transport = rt_pipe
1004 data = "|/usr/bin/rt-mailgate --queue '${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}}' --url https://rt.debian.org/ --action ${if match{$local_part}{.*-comment.*}{comment}{correspond}}"
1005 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1008 debug_print = "R: rt for $local_part@$domain"
1010 domains = rt.debian.org
1011 require_files = /usr/bin/rt-mailgate : RT_QUEUE_MAP
1012 local_parts = ${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}{$local_part}{}}
1013 local_part_suffix = +*
1014 local_part_suffix_optional
1015 pipe_transport = rt_pipe
1016 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}}"
1017 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1020 debug_print = "R: virt_aliases for $local_part@$domain"
1022 data = ${if exists{\
1023 ${extract{directory}{VDOMAINDATA}{${value}/aliases}}}\
1024 {${lookup{$local_part}lsearch*{\
1025 ${extract{directory}{VDOMAINDATA}{$value/aliases}}\
1027 directory_transport = address_directory
1028 cannot_route_message = Unknown user
1029 domains = +virtual_domains
1030 file_transport = address_file
1031 pipe_transport = address_pipe
1032 qualify_preserve_domain
1033 retry_use_local_part
1034 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1035 transport_home_directory = ${extract{directory}{VDOMAINDATA}}
1039 debug_print = "R: virt_direct for $local_part@$domain"
1045 directory_transport = address_directory
1046 domains = +virtual_domains
1047 file = $home/.forward-\
1048 ${if exists {${home}/.forward-${local_part}}{${local_part}}\
1050 file_transport = address_file
1051 pipe_transport = address_pipe
1052 reply_transport = address_reply
1053 retry_use_local_part
1054 router_home_directory = ${extract{directory}{VDOMAINDATA}}
1055 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1058 # This is a senmailesque alias file lookup
1060 debug_print = "R: virt_aliases for $local_part@$domain"
1064 data = ${if exists{\
1065 ${extract{directory}{VDOMAINDATA}{${value}/aliases}}}\
1066 {${lookup{$local_part}lsearch*{\
1067 ${extract{directory}{VDOMAINDATA}{$value/aliases}}\
1069 directory_transport = address_directory
1070 domains = +virtual_domains
1071 file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}}
1072 cannot_route_message = Unknown user
1073 group = ${extract{group}{VDOMAINDATA}}
1074 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1075 pipe_transport = address_pipe
1076 qualify_preserve_domain
1077 retry_use_local_part
1078 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1079 transport_home_directory = ${extract{directory}{VDOMAINDATA}}
1081 user = ${extract{user}{VDOMAINDATA}}
1083 # This is a qmailesque deliver into a directory of .forward files
1085 debug_print = "R: virt_direct for $local_part@$domain"
1091 directory_transport = address_directory
1092 domains = +virtual_domains
1093 file = $home/.forward-\
1094 ${if exists {${home}/.forward-${local_part}}{${local_part}}\
1096 file_transport = ${if eq {${extract{group_writable}{VDOMAINDATA}}}{true}{address_file_group}{address_file}}
1097 group = ${extract{group}{VDOMAINDATA}}
1098 headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}"
1100 pipe_transport = address_pipe
1101 reply_transport = address_reply
1102 retry_use_local_part
1103 router_home_directory = ${extract{directory}{VDOMAINDATA}}
1104 transport_current_directory = ${extract{directory}{VDOMAINDATA}}
1106 user = ${extract{user}{VDOMAINDATA}}
1107 #debug_print = .forward-${if exists {${home}/.forward-${local_part}} {${local_part}} {default}}
1109 ######################################################################
1110 # TRANSPORTS CONFIGURATION #
1111 ######################################################################
1112 # ORDER DOES NOT MATTER #
1113 # Only one appropriate transport is called for each delivery. #
1114 ######################################################################
1119 # This transport is used for local delivery to user mailboxes. On debian
1120 # systems group mail is used so we can write to the /var/mail
1121 # directory. (The alternative, which most other unixes use, is to deliver
1122 # as the user's own group, into a sticky-bitted directory)
1125 file = /var/mail/${local_part}
1128 no_mode_fail_narrower
1131 # This transport is used for handling pipe addresses generated by alias
1132 # or .forward files. It has a conventional name, since it is not actually
1133 # mentioned elsewhere in this configuration file. (A different name *can*
1134 # be specified via the "address_pipe_transport" option if you really want
1135 # to.) If the pipe generates any standard output, it is returned to the sender
1136 # of the message as a delivery error. Set return_fail_output instead if you
1137 # want this to happen only when the pipe fails to complete normally.
1141 current_directory = ${home}
1142 environment = "EXTENSION=${substr_1:${local_part_suffix}}:\
1143 EXT=${substr_1:${local_part_suffix}}:\
1144 LOCAL=${local_part}${local_part_suffix}:\
1145 RECIPIENT=${local_part}${local_part_suffix}@${domain}"
1149 # This transport is used for handling file addresses generated by alias
1150 # or .forward files. It has a conventional name, since it is not actually
1151 # mentioned elsewhere in this configuration file.
1161 directory_mode = 0770
1162 mode_fail_narrower = false
1164 # This transport is used for handling file addresses generated by alias
1165 # or .forward files if the path ends in "/", which causes it to be treated
1166 # as a directory name rather than a file name. Each message is then delivered
1167 # to a unique file in the directory. If instead you want all such deliveries to
1168 # be in the "maildir" format that is used by some other mail software,
1169 # uncomment the final option below. If this is done, the directory specified
1170 # in the .forward or alias file is the base maildir directory.
1172 # Should you want to be able to specify either maildir or non-maildir
1173 # directory-style deliveries, then you must set up yet another transport,
1174 # called address_directory2. This is used if the path ends in "//" so should
1175 # be the one used for maildir, as the double slash suggests another level
1176 # of directory. In the absence of address_directory2, paths ending in //
1177 # are passed to address_directory.
1187 # This transport is used for handling autoreplies generated by the filtering
1188 # option of the forwardfile director. It has a conventional name, since it
1189 # is not actually mentioned elsewhere in this configuration file.
1193 # This transport is used for delivering messages over SMTP connections.
1197 connect_timeout = 1m
1199 tls_certificate = /etc/exim4/ssl/thishost.crt
1200 tls_privatekey = /etc/exim4/ssl/thishost.key
1203 remote_smtp_smarthost:
1204 debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1206 .ifdef SMARTHST_PORT
1207 port = SMARTHST_PORT
1210 tls_tempfail_tryclear = false
1211 tls_certificate = /etc/exim4/ssl/thishost.crt
1212 tls_privatekey = /etc/exim4/ssl/thishost.key
1215 # Send the message to procmail
1218 command = /usr/bin/procmail -a ${substr_1:${local_part_suffix}}}
1220 user = ${local_part}
1229 user = ${extract{user}{\
1230 ${lookup{$domain}partial-lsearch{/etc/exim4/bsmtp}\
1234 .ifdef HAVE_USER_DEBBUGS
1237 command = /org/bugs.debian.org/mail/run-procmail
1238 environment = "EXTENSION=${substr_1:${local_part_suffix}}:\
1239 EXT=${substr_1:${local_part_suffix}}:\
1240 LOCAL=${local_part}${local_part_suffix}:\
1241 RECIPIENT=${local_part}${local_part_suffix}@${domain}"
1248 debug_print = "T: rt_pipe for $local_part${local_part_suffix}@$domain"
1251 environment = EXTENSION=${substr_1:${local_part_suffix}}
1252 allow_commands = /usr/bin/rt-mailgate
1255 ######################################################################
1256 # RETRY CONFIGURATION #
1257 ######################################################################
1259 # This single retry rule applies to all domains and all errors. It specifies
1260 # retries every 15 minutes for 2 hours, then increasing retry intervals,
1261 # starting at 2 hours and increasing each time by a factor of 1.5, up to 16
1262 # hours, then retries every 8 hours until 4 days have passed since the first
1265 # Domain Error Retries
1266 # ------ ----- -------
1271 debian.org * F,2h,10m; G,16h,2h,1.5; F,14d,8h
1272 * * senders=: F,2h,10m
1273 * rcpt_4xx F,2h,5m; F,4h,10m; F,4d,15m
1274 * * F,2h,15m; G,16h,2h,1.5; F,4d,8h
1276 # End of Exim 4 configuration