> > Are you running F-Prot on that server? A few people have recently reported
> > slow SMTP connections when running 16-bit processes (such as F-Prot.exe) on
> > the server -- the new F-Prot fpcmd.exe is a 32-bit program and fixes the
> > problem.
> Yes we are running F-PROT - let me look into that....
Normally, it's hard to imagine that any program could interfere with the speed of the SMTP connection, unless it was involved in the SMTP transaction somehow (such as a software firewall) or had very high CPU usage.Would that affect the SMTP connection though, or just the speed of sending the emails? We are seeing very similar issues right now.
However, in this case with F-Prot (which only a few people have reported, so it appears to only occur with certain OS settings), the 16-bit processes would somehow end up slowing the SMTP connections. Switching to a 32-bit AV program would fix the problem.
While on the topic of AV and speed, though, you may also see massive CPU usage (and hence slowdowns) if you have an AV program actively scanning .mbx files (which normally there is no need to do, as most AV scanned can't find most viruses in .mbx files, since they don't know the file format of the .mbx files).
-Scott
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