| 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 | At the moment this must be done by hand on each individual server. Once fully tested, it will be handled by puppet. |