Eric Abrahamsen <e...@ericabrahamsen.net> writes: > Eric Abrahamsen <e...@ericabrahamsen.net> writes: > >> I recently updated a server's Ubuntu version, and multi-domain >> sender-dependent transport for Postfix has stopped working. Postfix is >> now at 2.11.0, but I'm not actually sure what version it was at before. >> >> This installation serves two domains, one of which is the one I'm using >> to send this message. The other is supposed to be switched to a >> different outgoing IP/host using >> sender_dependent_default_transport_maps. This has been working just fine >> for many months. >> >> Since the server upgrade, all messages sent by the other domain show as >> being sent by the IP for ericabrahamsen.net, and SPF checks are failing. >> Ie, the smtp_bind_address in master.cf below isn't taking effect.
And, strangely, it doesn't *always* seem to go wrong. At the very least, the addresses that bounce due to SPF fail don't bounce every time.
