Len Conrad put forth on 3/4/2010 4:16 AM: > If listsen...@domain.tld, send to Internet > > Else, send to MX gateway
This may be what you're looking for. http://www.postfix.org/postconf.5.html#sender_dependent_relayhost_maps sender_dependent_relayhost_maps (default: empty) A sender-dependent override for the global relayhost parameter setting. The tables are searched by the envelope sender address and @domain. A lookup result of DUNNO terminates the search without overriding the global relayhost parameter setting (Postfix 2.6 and later). This information is overruled with relay_transport, sender_dependent_default_transport_maps, default_transport and with the transport(5) table. For safety reasons, this feature does not allow $number substitutions in regular expression maps. This feature is available in Postfix 2.3 and later. -- Stan
