From owner-freebsd-stable  Sun Jun 16 18:49:31 2002
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Date: Sun, 16 Jun 2002 18:49:20 -0700
From: Gregory Neil Shapiro <gshapiro@FreeBSD.ORG>
To: Gary D Kline <kline@thought.org>
Cc: freebsd-stable@FreeBSD.ORG
Subject: Re: sendmail or namedb configurations....
In-Reply-To: <200206130558.g5D5wQH96322@tao.thought.org>
References: <200206130558.g5D5wQH96322@tao.thought.org>
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kline> Before I put my other hosts behind my firewall, and on my private
kline> 10.* network,  I'm trying with an existing host, zen.

kline> (Deferred: Operation timed out with zen.thought.org.)
kline> <jqs@zen.thought.org>

kline> in mailq.   "jqs" is a unique user, only on zen.

Look at the output of:

/usr/sbin/sendmail -qRzen.thought.org -v

I'm going to assume it hangs on trying to connect to zen.  Try:

telnet zen.thought.org 25

That should hang as well.  This sounds like a network connectivity issue,
not a mail or DNS issue.  Things to check:

- Routing (netstat -rn output, traceroute output)
- Firewall (log denied packets and look at the logs)
- NAT misconfiguration

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