3 ### Transmission to remote hosts for distorted.org.uk Exim configuration.
5 ### (c) 2012 Mark Wooding
8 ###----- Licensing notice ---------------------------------------------------
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.
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.
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.
24 ###--------------------------------------------------------------------------
25 ### Listen for incoming connections.
27 SECTION(global, daemon)m4_dnl
28 daemon_smtp_ports = CONF_smtp_port : CONF_submission_port
31 ###--------------------------------------------------------------------------
32 ### Check source addresses for apparently local senders.
34 SECTION(acl, mail-hooks)m4_dnl
35 ## Check that a submitted message's sender address is allowable.
36 require acl = mail_client_addr
38 SECTION(acl, misc)m4_dnl
41 ## If this is a message submission then that's handled elsewhere.
42 accept condition = ${if eq{$acl_c_mode}{submission}}
44 ## Make sure that the sender matches the client address. I feel like
45 ## I want to reject these, but that will break stuff. For example,
46 ## if I send mail to an externally hosted address which is really a
47 ## distribution list containing some local address, then we'll
48 ## (approximately legitimately) receive mail with an apparently-local
49 ## sender from a remote host.
50 warn !hosts = ${LOOKUP_DOMAIN($sender_address_domain,
51 {KV(hosts, {$value}{+allnets})},
52 {${if match_domain {$sender_address_domain} \
54 {+allnets}{! +allnets}}})}
55 add_header = :after_received:X-Distorted-Warning: \
57 Apparently local sender, but received from remote \
59 sender=$sender_address \
60 host=$sender_host_address
66 ###--------------------------------------------------------------------------
67 ### The obvious trivial router.
69 SECTION(routers, remote)m4_dnl
70 ## Send mail on to a host in our own network. We must apply extra security.
73 domains = ! +known : CONF_master_domain : *.CONF_master_domain
75 transport = smtp_local
78 ## Send mail on to unknown hosts.
87 ###----- That's all, folks --------------------------------------------------