Changes between Version 3 and Version 4 of postfix-multi-relay


Ignore:
Timestamp:
Apr 21, 2014, 12:50:05 PM (5 years ago)
Author:
Jamie McClelland
Comment:

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  • postfix-multi-relay

    v3 v4  
    11= Postfix Multi Relay =
    22
    3 We are running two servers (rustin in Telehouse and cleveland in XO) that are configured to run multiple instances of postfix.
    4 
    5 These servers relay mail on behalf of our servers that send bulk mail:
    6 
    7  * leslie.mayfirst.org (lists.mayfirst.org)
    8  * assata.mayfirst.org (lists.people-link.net)
    9  * morales.mayfirst.org (lists.portside.org)
    10  * mx3.mayfirst.org (listas.laneta.apc.org)
    11 
    12 == The relays ==
    13 
    14 Currently, there is only one relay setup on rustin. The setup is handled in puppet by the following lines in rustin's pp file:
    15 
    16 {{{
    17  class { "m_postfix::multi":
    18     smtp_bind_ip => "216.66.22.61",
    19     multi_instance_directories => [ "postfix-a" ]
    20   }
    21   m_postfix::multi_relay_instance { "postfix-a":
    22    smtp_bind_ip => "216.66.23.37",
    23    mynetworks => $::mfpl_relaying_ips
    24   }
    25 }}}
    26 
    27 The first stanza should be included once for each host.
    28 
    29 The second stanza should be repeated for each relay instance on that host.
    30 
    31 When adding a new instance:
    32 
    33  * Create a DNS Host record that associates the IP address to the host
    34    (e.g. rustin.mayfirst.org <=> 216.66.23.37).
    35  * Create an A record set to a.rustin.mayfirst.org (or b or c, etc corresponding
    36    to how you have named the instance).
    37 
    38 == Using the relay ==
    39 
    40 To use a relay, add an entry to /etc/postfix/transport.relay, e.g.:
    41 
    42 {{{
    43 hotmail.com     smtp:a.rustin.mayfirst.org
    44 }}}
    45 
    46 The line above says: relay all mail destined for hotmail.com through a.rustin.mayfirst.org.
    47 
    48 You will then need to run the commands:
    49 {{{
    50 # postmap transport.relay
    51 # postfix flush
    52 }}}
    53 
    54 These commands say respectively, convert the transport.relay into transport.relay.db (so postfix can use it) and flush the mailq.
    55 
    56 At the moment this must be done by hand on each individual server. Once fully tested, it will be handled by puppet.
     3This documentation is superseded by [wiki:bulk-mail-relay].