[TriLUG] Postfix Configuration Question

[Ken Mink]

Hi Folks,
   I've been trying to figure this out, but I'm stumped. I've got two
servers running postfix that handle email for our domain($WORK). One
is in the dmz and has relay_domain set for our domainname. In the
transport file, I have an entry for our domainname and the internal
server to forward it to. This works fine, but I have an issue with it.
Due to people who have left the comany, tons of spam comes in for
addresses in our domain, but that no longer exist. The server in the
dmz accepts the messages and forwards them on like it should. The
internal machine then tries to bounce the message since the user is
unknown. Since most spam uses a bogus from, the internal machine is
getting clogged with messages it can't bounce. There half a dozen
employees here, but a postqueue -p lists a couple thousand defferred
messages. What I'd like is for the dmz server to immediately reject
mail for unknown users. Apart from adding an account for everyone on
that machine, I don't klnow how to go about doing that. I've tried
explicitly putting each account in the transport file, but that just
added the bouncing to the dmz's deferred queue rather than the
internal server. Any ideas?

Thanks,
Ken
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