King Cao:
> Currently Postfix doesn't support multiple destinations on transport (eg:
> smtp: [192.168.0.1]:25, [192.168.0.2]:10025 this is not supported).
> However Postfix support multiple destination on smtp_fallback_relay (eg:
> smtp_fallback_relay = [192.168.0.1]:25, [192.168.0.2]:10025).
> Now I have implemented this feature(support multiple destinations) based
> on Postfix 2.8.8 (it's easy to add it on latest version).
> My question is who can I contact with to check whether/how I add my patch
> on source code tree.
Wietse:
> Use smtp_fallback_relay.
King Cao:
> I know smtp_fallback_relay can support multiple destinations, however,
> this setting is for all domains. If I want to set different multiple
> destinations for different domains/sub domains, the only workaround is to
> use MX query (without square bracket[]), but such workaround can't set
> different port for different destinations. That's why I want to add some
> patch to support multiple destinations for transport (also support
> different port).
Multiple destinations per nexthop would break queue manager's
concurrency scheduling policies or it would would break the queue
manager's independence of nexthop syntax.
I am suspicious about applications that require manual configuration
of different fallback routes for different destinations. If you
really need such things then you can use different transports, each
having their own smtp_fallback_relay, smtp_bind_address and so on.
Wietse
