Need Recommendations

[Derek Catanzaro]

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2 MX servers with the following

Dual 933Mhz 1 Gig of memory
FC1  (mailscanner and spamassassin need to be upgraded)
mailscanner-4.31.6-1
spamassassin-2.63

1.7Mhz 512 Memory (desktop)
FC2
mailscanner-4.40.11-1
spamassassin-3.0.2-1

I am experiencing a slow down in the delivery/processing of email on my MailScanner servers.  I receive roughly 50,000 emails on a daily basis and if there is a delay in the processing of any emails it can get backed up very quickly.  I'm not sure if it is a DNS timing issue?, would anyone recommend using local DNS in this case, or does anyone use it and have they seen improvements?  Can anyone recommend anything in the MailScanner.conf file that may help?

I have "Max children" set to 10 on the server with dual process and 5 on the server with one processor, and "queue scan interval" is set to 6 on both servers as well.  I am using Clamav as my virus scanner.  Please let me know if you need additional info, and thanks in advance for your assistance.

Derek

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