White, Daniel E. (GSFC-770.0)[NICS]: > I am somewhat confused about which parameters apply to an outgoing vs an > incoming message. > > I think that > > relay_transport mail that you're willing to forward > relay_domains and mail that you're willing to forward > relayhost mail that you're delivering remotely > > apply to outgoing messages.
relayhost and default_transport are for deliveries to all other domains. relay_domains and relay_transport are for remote destinations that list your system as primary or backup MX host. > I think that > > virtual_transport and > local_transport (set to " error: local delivery disabled") These are typically used for local deliveries. More in http://www.postfix.org/ADDRESS_CLASS_README.html Wietse
