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The mydestination setting is fine if your destination list doesn't change. But, IMO, it suffers from the data-duplicated-multiple-times syndrome. I already have this information in my DNS, duplicating it somewhere else seems like a huge waste of scarce resources (that being my ability to remember to do this should I change my network topology).

I plan on inserting a spam filter, too, but last time I tried, email crawled to a halt because my poor machine couldn't keep up with it. This is kind of the first step in reclaiming that: by eliminating over 90% of the spam based on bad domain names, I will only need to check 10%. Even that will likely bring my P3-550 to a crawling halt, so I'm going to have to set up a distributed spam check (spamd running on another machine) somehow.

Running a caching bind server on a small machine vs caching my own lookups... hmm... ;-) I suspect that for this machine, it's cheaper in both CPU and RAM to cache inside my milter.

As for a rbl, I didn't really think of trying it until this. So thanks :-) (It makes me even more glad I posted this - I never would have imagined such a useful response, but I got it anyway.)

In reply to Re^2: PMiltering fun by Tanktalus
in thread PMiltering fun by Tanktalus

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