| 1 | ### -*-m4-*- |
| 2 | ### |
| 3 | ### Local senders and recipients for distorted.org.uk Exim configuration |
| 4 | ### |
| 5 | ### (c) 2012 Mark Wooding |
| 6 | ### |
| 7 | |
| 8 | ###----- Licensing notice --------------------------------------------------- |
| 9 | ### |
| 10 | ### This program is free software; you can redistribute it and/or modify |
| 11 | ### it under the terms of the GNU General Public License as published by |
| 12 | ### the Free Software Foundation; either version 2 of the License, or |
| 13 | ### (at your option) any later version. |
| 14 | ### |
| 15 | ### This program is distributed in the hope that it will be useful, |
| 16 | ### but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | ### GNU General Public License for more details. |
| 19 | ### |
| 20 | ### You should have received a copy of the GNU General Public License |
| 21 | ### along with this program; if not, write to the Free Software Foundation, |
| 22 | ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 23 | |
| 24 | m4_define(<:FILTER_LOCALUSER:>, |
| 25 | <:FILTER_BASE |
| 26 | check_local_user |
| 27 | ignore_enotdir |
| 28 | sieve_useraddress = $local_part |
| 29 | sieve_subaddress = CONF_user_extaddr_fixup |
| 30 | sieve_vacation_directory = CONF_userconf_dir/vacation |
| 31 | condition = ${if exists {<:$1:>}} |
| 32 | file = <:$1:>:>) |
| 33 | |
| 34 | ###-------------------------------------------------------------------------- |
| 35 | ### Be flexible about originator addresses, as long as they probably work. |
| 36 | |
| 37 | SECTION(global, priv)m4_dnl |
| 38 | local_from_suffix = CONF_user_suffix_list |
| 39 | |
| 40 | SECTION(global, process)m4_dnl |
| 41 | ## Restrict users to plausible envelope sender addresses. This is |
| 42 | ## surprisingly fiddly. What I actually want to say is that the local part |
| 43 | ## must match ^$sender_ident(\$|-) and the domain part must match an |
| 44 | ## appropriate domain; but writing a conjunction is rather tricky. And so we |
| 45 | ## must burn some addresslist variables. |
| 46 | addresslist wrong_local = ! +user_extaddr |
| 47 | addresslist wrong_domain = ! *@+public |
| 48 | addresslist wrong_address = +wrong_local : +wrong_domain |
| 49 | untrusted_set_sender = : \ |
| 50 | ${LOOKUP_DOMAIN($sender_address_domain, |
| 51 | {${if and {{match_local_part {$sender_ident} {+dom_users}} \ |
| 52 | {match_local_part {$sender_address_local_part} \ |
| 53 | {+dom_locals}}} \ |
| 54 | {*}}})} : \ |
| 55 | ! +wrong_address |
| 56 | |
| 57 | ###-------------------------------------------------------------------------- |
| 58 | ### Forwarding and redirection for incoming mail. |
| 59 | |
| 60 | SECTION(routers, alias)m4_dnl |
| 61 | ## Look up the local part in the address map. |
| 62 | alias: |
| 63 | driver = redirect |
| 64 | allow_fail = true |
| 65 | allow_defer = true |
| 66 | user = CONF_filter_user |
| 67 | FILTER_TRANSPORTS |
| 68 | local_parts = nwildlsearch; CONF_alias_file |
| 69 | data = ${expand:$local_part_data} |
| 70 | |
| 71 | SECTION(routers, real)m4_dnl |
| 72 | ## A special hack to get mail to a user who has a forward file. Only for |
| 73 | ## special effects. |
| 74 | real: |
| 75 | driver = accept |
| 76 | check_local_user |
| 77 | local_part_prefix = real- |
| 78 | transport = deliver |
| 79 | condition = ${if match_ip {$sender_host_address} \ |
| 80 | {<; ; 127.0.0.1 ; ::1}} |
| 81 | |
| 82 | SECTION(routers, forward)m4_dnl |
| 83 | ## Handle user forward files. Each user is granted an arbitrary number of |
| 84 | ## additional mailboxes named USER-SUFFIX. Such addresses are handled by a |
| 85 | ## filter file `~/.mail/forward.suffix' in the USER's home directory. The |
| 86 | ## filter may reject the incoming message (which is reported as an SMTP |
| 87 | ## rejection if possible). Mail sent directly to the user is handled through |
| 88 | ## `~/.mail/forward', or `~/.forward', or if neither of those exists, by |
| 89 | ## writing the message to `/var/mail/USER'. |
| 90 | FILTER_ROUTER(filter_suffix, |
| 91 | <:FILTER_LOCALUSER(CONF_userconf_dir/forward.suffix) |
| 92 | local_part_suffix = CONF_user_suffix_list:>) |
| 93 | FILTER_ROUTER(filter, |
| 94 | <:FILTER_LOCALUSER(CONF_userconf_dir/forward):>) |
| 95 | FILTER_ROUTER(dot_forward, |
| 96 | <:FILTER_LOCALUSER($home/.forward):>) |
| 97 | |
| 98 | SECTION(routers, deliver)m4_dnl |
| 99 | ## Deliver mail to a user, in the absence of any other instructions. |
| 100 | deliver: |
| 101 | driver = accept |
| 102 | check_local_user |
| 103 | transport = deliver |
| 104 | cannot_route_message = Unknown local part |
| 105 | |
| 106 | DIVERT(null) |
| 107 | ###----- That's all, folks -------------------------------------------------- |