| 1 |
>I want to backup mx a server that is *not* accessible via default |
| 2 |
>port 25. |
| 3 |
>Is there a way to configure the backup mx in that way it sends data to the |
| 4 |
>master server port != 25? |
| 5 |
> |
| 6 |
> |
| 7 |
port is not part of MX dns record, it is always 25 |
| 8 |
therefore no, you cannot have a backup MX pointing to another port |
| 9 |
|
| 10 |
of course, you can configure your smtp server to listen on any port you |
| 11 |
wish, |
| 12 |
but it won't help you with respect to the outside world |
| 13 |
|
| 14 |
the only possible solution would be to have two ip addresses on one |
| 15 |
interface, run backup instance of |
| 16 |
postfix on another port and redirect secondary ip address port 25 to the |
| 17 |
port of the backup postfix instance |
| 18 |
but this assumes having two (external) ip addresses available |
| 19 |
|
| 20 |
regards, |
| 21 |
martin |
Archives