Dave Jones:
> I am converting some sendmail boxes to postfix and can't find any
> information about multiple destinations (preferably primary /
> secondary).
If it is not documented, then it is not implemented.
> Sendmail has a mailertable entry like this:
>
> domain.com smtp:[primary.domain.com]:[secondary.domain.com]
>
> It will only deliver to the secondary server when the primary is down.
>
> I need this same functionality in postfix so I can provide a backupmx
> or mailbag if the primary link or mailserver goes down.
In Postfix, use MX lookups
example.com smtp:example.com
This will try all the primary hosts first, then the secondary hosts.
If you can't use MX lookups, then send to the primary MX.
Postfix does not support multiple destinations in transport map
right-hand sides, as that would break per-destination concurrency
scheduling.
Wietse
