Postfix performance tuning    Friday, May 20 2005 @ 03:24 AM EDT Contributed by: glosser This book shows how to tweak Postfix to improve performance. Postfix is fast out of the box, but like other packages, you can usually tune it to work even faster. Furthermore, there are situations where Postfix may not perform as well as you expected, whether because of hardware or software limitations on the server system or other adverse conditions, such as a big influx of spam or undeliverable mail. This article shows you how to find and analyze the most common performance problems. This article is excerpted from the newly published book "The Book of Postfix." We will first look at a few elementary tweaks that still may not be terribly obvious. Think of the suggestions here as a checklist for solving or avoiding simple problems. Above all, keep in mind that many performance problems are actually caused by a flawed setup, such as a bad /etc/resolv.conf file. The following points appear in no particular order; they're all of equal importance. Speeding up DNS lookups Full article from NewsForge   [ Views: 1598 ]

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