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> ----- Transcript of session follows -----
> ggaddis@xyz.com... Deferred: Connection reset by peer with zyx.com.
> Message could not be delivered for 3 days
> Message will be deleted from queue
I had a similar problem with "nethang while talking to host xxxx".
In our case, the problem was that /etc/resolv.conf was missing from a
Solaris-2.x machine.
We found the problem by manually telnetting to the SMTP port the problem
machine.
telnet xyz.com 25
rcpt to: theirname
mail from: myname@myhost
At this point, the connection would hang for 70 seconds, as the sendmail on
xyz.com tried to do a reverse DNS lookup on the origination IP address. The
sendmail on my machine also had a 70 second timeout, so it was a race.
If the remote machine came back with "250 myname... Sender ok" before the local
sendmail gave up waiting, then the message would go through.
In my case, the fix was to put a valid /etc/resolv.conf on the remote system
and reboot it.
-Joe
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