Page 1 of 1

SMTP Responses slow with a single session

Posted: Wed Dec 06, 2006 10:48 am
by jmoses
We're seeing an issue with SMTP connections. It takes more than a minute for each command to complete. This isn't just the initial SMTP connection, which si also terribly slow, it's also the individual SMTP commands (HELO, MAIL FROM, RCPT TO) that all take more than a minute to produce a response.

The odd thing is this only happens on the real IP of the box. If I'm on the box and try to telnet to the IP, I get the slowness. If I try and telnet to localhost, port 25, it's really fast, like usual.

We're restarted the services and the box, but nothing helped. We haven't made any changes to the box before we started seeing this, and there's nothing really in `omshowlog`.

Any suggestions? I've tried the various forward and backwards DNS lookups, and everythings fast.

Thanks,
-jon

magically fixed itself?

Posted: Wed Dec 06, 2006 11:53 am
by jmoses
And now everythings fast again. I'm still curious as to what could have caused this.