Re: [exim] Finding system bottlenecks to speed up Exim

On Fri, 14 Mar 2008, Marc Perkel wrote:

| I just took on a new customer who has an incredible amount of spam
| coming and and it's a keeping up but taxing the server and I'm trying to
| figure out where the bottleneck might be. The spam bots are hitting it
| between 10-30 times a second.

Hi,

Interesting.

Our MX boxes get that sort of spam rate much of the time, and are a LOT
less powerful than yours. The vast majority of attempts are rejected
early and quickly with little fuss.

(in a large part thanks to the generic rDNS tests ;-))