[Mimedefang] Re: sendmail processes remaining after message rejected

Scott Silva ssilva at sgvwater.com
Fri Aug 31 18:24:28 EDT 2007

Michael D. Sofka spake the following on 8/31/2007 6:41 AM:
> I sent a version of this to the CanIt list last night....
> The load on our smtp servers has gone way up the past few days.
> There are now 250--300 sendmail processes running on each machine,
> here normally there are fewer than 100 processes running.
> Most of the processes are from connections that were rejected,
> due to RBLs, or high spam score.  But, the sendmail processes
> remain in "cmd read" mode.  I've firewalled a few of the more
> aggressive IPs.
> There was some discussion on the Mimedefang list about
> completewhois going offline, and slowing down spamassassin.
> I've removed the completewhois rules from spamassassin
> yesterday, but this has not helped.
> Since last night I noticed that we're running out of Mimedefang
> slaves.  Not surprising if old sendmail connections are hanging
> around, but I wonder if this could be a cause rather than an
> effect.
> Has anybody else seen this?  I remember something similar with a
> Brazilian ISP a few years ago. (More than a few--it predated CanIt.)
> There is more email traffic this week, from returning students
> and classes starting.   But, not that much more traffic.
Another guide that any body using sendmail should read is 


MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!

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