Matt, thanks for the great tip, but it didn't solve my problem. I disabled Bayes and then modified procmail as you suggested, and a large, legit email from a previously unknown user (not whitelisted) with a 30k attachment went through without a hitch. Then I re-enabled Bayes, and SA choked and crashed on a small email (under 2k) with another out of memory error - so I think it's got to be a problem with the Bayes database. I did run sa-learn --build (even before I posted), and that didn't seem to do any good.
-Abigail
How much memory does your system have?
Bayes can be a pretty substantial memory hog, particularly if your mailserver is limping along with 32mb of ram or similar low-end hardware.
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