Problems with idle pop3 connections locking mailboxes

Michael Loftis mloftis at
Mon Jul 12 18:59:10 EDT 2004

--On Monday, July 12, 2004 17:16 -0500 Michael Sims 
<michaels at> wrote:

> As promised, I'm following up to the list on the status of this problem,
> in case anyone has an issue like this in the future.  It does appear to
> have been caused by our intrusion detection device.  Our network manager
> configured this device to avoid scanning POP3 connections and for the
> past two weeks I have not seen any more pop3 daemons stuck in the middle
> of a write().  I may be jinxing myself by saying that the problem is
> resolved but it certainly appears to be so.

write() to disk or network?  if network then sounds like a nasty deadlock 
in the NIDS.  i never did like NIDS that required inserting themselves into 
the traffic stream.

> Thanks a lot to everyone who helped me with this.
> ---
> Cyrus Home Page:
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