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Old 14th May 2008
J65nko J65nko is offline
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Join Date: May 2008
Location: Budel - the Netherlands
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I don't run a mailserver. That is why I just did a manual DNSBL lookup to show you what to expect in the tcpdump output.
You will have to determine using tcpdump whether sendmail is doing DNSBL lookups while processing the incoming mail.

From the rc.conf stuff you posted, I saw you use clamav virusscanning. This really can be a resource hog. You could check if you are not somehow running out of resources like file descriptors, memory space etc.

Another point is the /etc/rc.d/sendmail status output complaining that "sendmail_clientmqueue" is not running.

Did you take the necessary steps to "compile' the sendmail mc file into the sendmail.cf format? And make sendmail re-read this file?

I am not really a sendmail expert. If the above suggestions don't work you may be better off to ask on a sendmail mailing list
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You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump
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