Best way to use blacklists?

Peter Peters P.G.M.Peters at
Tue Nov 19 08:10:28 GMT 2002

On Mon, 18 Nov 2002 15:39:12 -0500, you wrote:

>I hope this helps.  Bear in mind that the more blacklists you use,
>the longer it takes to process each message.  If you're rejecting
>mail in sendmail, the sender can time out while waiting for you
>to check all the blacklists.

I use 10 blacklists (in MS) and i keep processing several messages
within seconds. Only when one of the blacklists times out (currently
occasionally infinite monkeys) it takes up to 20 seconds to process a

Peter Peters
senior netwerkbeheerder,  Centrum voor Informatievoorziening,
Universiteit Twente,   Postbus 217,  7500 AE  Enschede
telefoon: +31 53 489 2301, fax:+31 53 489 2383,

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