Over the last week or so we have been getting terrible performance, mostly noticed through SMTP (either not accepting connections on port 25 or really slow response). I have not been able to find any errors reported in Imail or Declude. Watching Task Manager shows the CPU maxed at 100% almost all of the time, and usually one of many Declude.exe processes using most of it. Occasionally one of the other Imail services will spike (queuemgr.exe, smtpd32.exe, or pop3d32.exe usually), but not for more than a few seconds. I've tried both Declude 1.75 release & 1.79 beta, but both do the same thing. Server stats follow:
Do you have a lot of BODY filters, or other types of filters that would use a lot of CPU time (such as filters with thousands of lines in them)?
Are you using F-Prot.exe with Declude Virus (which wouldn't cause high CPU usage in the Declude.exe process, but could cause slow SMTP response)? If so, switching to the 32-bit fpcmd.exe (and removing the /NOFLOPPY switch in the SCANFILE line in your virus.cfg file) would fix it.
-Scott
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