Subject: what's wrong with my sendmail?
From: Justin Dieters (enderak@gci.net)
Date: Thu Nov 13 2003 - 00:25:55 AKST
Okay, so GCI killed my cable modem connection today, because my sendmail
server was supposedly relaying messages it wasn't supposed to. I've had
it up for a long time, and I thought it was fairly well set up, so this
comes as news to me.
Under relay-domains, all I had was "192.168", so that I could send mail
from the other computers on my network. Now, I took that out, so I have
to either SSH into the server and send mail that way, or use
squirrelmail (webmail inteface).
Looking through my logs, all I see normal (non-spam) messages, and the
occasional "Relaying Denied". I've tested my server using 'telnet
relay-test.mail-abuse.org' and several other online testing services,
and they all come back clean.
GCI gave me the from and to addresses on some of the culprit e-mails,
and these don't appear in my logs anywhere.
My smoothwall is set up to only allow SSH, http, and smtp through, and
they are forwarded to my server on the orange network, so that should be
pretty secure - unless there might be a vulnerability in squirellmail,
but since I don't see anything suspicious in my logs, I'm thinking that
isn't the problem.
Anyone know what might be going on?
Justin
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This archive was generated by hypermail 2a23 : Thu Nov 13 2003 - 00:28:27 AKST