* Wietse Venema <postfix-users@postfix.org>: > Christian Ro??ner: > > Possible situation: Central SMTP-hub that gets connections from > > MX-ins and internal servers, ... > > I have a simpler solution: separate those mail streams with separate > MTA instances. That avoids the complexity of adding exceptions to > main.cf, milters, ... > > Different streams can have different filters/milters, which is more > flexible than a milter on/off switch. > > The two MTA instances can run on the same host (bound to different > IP addresses) or on separate hosts.
I expected this answer and obviously it makes sense to suggest this solution at first. We came up with that approach too, but had to give it up once we had a closer look at the environment the service runs in. It is not always possible to use an additional IP address or port. Christian's RFE deals with exact these scenarios. We would use the simplier approach if it were possible. p@rick -- [*] sys4 AG https://sys4.de, +49 (89) 30 90 46 64 Schleißheimer Straße 26/MG,80333 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein