Andrea Cappelli: > 2016-08-20 23:40 GMT+02:00 Andrea Cappelli <a.cappe...@gmail.com>: > > > Hi All, > > I have a postfix 2.9.6 setup on Ubuntu 12.04 which serve a bounch of local > > mailbox and act as mail gateway with a tcp transport > > > > I want to use some external authenticated MTA based on sendere domain, so > > Ok, I think I found my problem, my TCP service is called each time and > always return a nexthop, so the sender based mechanism in postfix is never > in action > > Can someone please exaplain the order of lookup in transport(5)
$ man 5 postconf | less '+/sender_dependent_default_transport_maps' ... This information is overruled with the transport(5) table. ... transport_maps has precedence over sender_dependent_default_transport_maps because transport_maps also has precedence over default_transport. If you use sender-dependent routing, you can't use transport_maps. You can still use default_transport, relay_transport, local_transport and virtual_transport, for routing domains. Wietse