On Wed, Sep 24, 2014 at 12:58:46PM -0400, Postfix wrote:
> As it stands today, the mxrelay box is what every box sends mail to
> initially, with local mail being sent to the internal mailhost, and
> everything else to an upstream MX box that has connectivity (it's third
> party not managed by me)
You can/should use the "relay" transport for "inbound" mail, and
the "smtp" transport for outbound mail. Appropriate overrides of
smtp_generic_maps can be specified in master.cf:
master.cf:
relay unix ... smtp
-o smtp_generic_maps=$relay_generic_maps
...
main.cf:
relay_generic_maps = ...
--
Viktor.
