Re: SMTP problems

[Rick Stevens <rstevens vitalstream com>]

Scott A. Zanke wrote:
> Hello,
> I am running RH 7.0 with 2.2.16-22 kernel and 8.11.6 sendmail on my server 
> box.
> This box has all of the latest updated via up2date.
> I have noticed a slowdown in mail for the last couple of days and a friend 
> said his mail to me bounced. Looking at /var/log/maillog I see mail to my 
> zank zank com mail bouncing with realying denied messages.

Look carefully at the logs of the bounced messages and see which ruleset
was causing the bounce.  That'll help sort it out.

Also, be aware that some older 2.2 kernels had problems with the DNS
cache filling up and not expiring.  Restarting sendmail or rebooting
will fix it.  So will upgrading to a 2.4 kernel.

Yes, RH7.0 will run on a 2.4 kernel, but you'll have to update your
modutils and initrd RPMs to ones from RH7.1 or later (at least ones
compatible with 2.4 kernels).
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- Rick Stevens, SSE, VitalStream, Inc.      rstevens vitalstream com -
- 949-743-2010 (Voice)                    http://www.vitalstream.com -
-                                                                    -
-            If ignorance is bliss, you must be orgasmic.            -
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