Performance problems

[List Account]

Hello everyone,

I know this is more of a RedHat problem than a MailScanner problem, but I 
can't get an answer from the taroon list.  I'm running RedHat ES 3.0 with 
MailScanner, postfix, ClamAV and SpamAssassin.  From a fresh reboot, 
MailScanner performs beautifully, and will continue to do so for about a 
month.  After a month however, all the memory in the system is eaten up by 
buffer and cache according to top.  MailScanner then starts to use the swap 
space, which put the performance in the toilet.  Is there any way to limit 
the amount of memory used for buffer and cache?  I've looked all over the 
net, but maybe someone here has run into this and has a fix.  My machine is 
a Dell 1750 with dual 2.4 P4s and 1 GB RAM.

Thanks,

Howard

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