Re: [exim] Performance Tweaks

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Author: Tony Finch
Date:  
To: Jose de Paula Eufrásio Junior
CC: exim-users
Subject: Re: [exim] Performance Tweaks
On Fri, 8 Oct 2004, Jose de Paula Eufrásio Junior wrote:
>
> So, if anyone can provide manners to make this checks a little less demanding
> in DNS and bandwidth and optimizing even more the MySQL connections (some sort
> of extended cache maybe? replicating the blacklists locally?)


Are you worried about the number of concurrent processes? We have about
1.5 million offered messages each day of which we're rejecting 80% at
SMTP time with a few simple checks. We have 7 machines with up to about
300 concurrent Exim processes each. Local DNS caches are a must; well-
ordered checks can help reduce work.

Tony.
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