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I am trying to setup internal e-mail on my systems and I'm having weird
problems. My firewall is 192.168.0.1, my e-mail (sendmail and ipop3d)
are on 192.168.0.2, .2 is also my internal dns that all my machines use.

My firewall is setup for eth0 being my vdsl connection, eth1 is my
internal nic. All machines connect to the outside via iptables nat.

Qwest blocks port 25, I think that's my problem, coming from the
internal nat.

when 192.168.0.5 sends an e-mail, it goes to .2 which resolves
the-arcanum.org as internal 192.168.0.1, when I watch sendmail on .2, it
says it is deferred and stops. It won't send it.=20

I tried changing my dns to resolve the-arcanum.org to be .2 , but that
didn't work, it came back saying that the message loops back to itself,
MX problem. So I added MX records for the-arcanum.org to point to .2 but
then sendmail just times out trying to send a message.

Is this all because qwest is blocking 25 and I'm internally nat'ing, or
something else? I didn't have this problem when I had normal dsl without
any ports being blocked, but maybe I'm missing the problem.

Can anyone shed some light on this for me?

nathan

--=20
Nathan England
nathan at the-arcanum.org
jabber id: linuxjunkie@jabber.earth.li

"A free society is one where it is safe to be unpopular."
--Adlai Stevenson


Registered Linux User #189789, Machine #106603

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