Mailcow-dockerized: Multiple Hosts in sender-dependent transport maps

[Jimmi123]

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I have two mail gateways if one fails. Therefore I don't have the option to enter multiple servers in the sender-dependent transport maps.

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An option to include multiple hosts for the same domain in the sender-dependent transport maps.

[dragoangel]

It sounds as a good idea, but at http://www.postfix.org/postconf.5.html#sender_dependent_default_transport_maps doesn't clearly described if it will works with multiply hosts or not.

[SkanderHelali]

I was going to open a similar feature request, is this possible in any way?

I'd like to assign multiple relay hosts for the same domain, that way if I disable a relay (or it goes offline) the domain switches to the second one automatically. Maybe even randomly select one when sending if both are enabled & functional.

[andryyy]

You need to balance them via DNS or a proxy, there is no such implementation in Postfix. Correct my if I'm wrong. :)