On Fri, 8 Feb 2008, Paolo Cravero wrote:

Don't forget that sa-learn remembers which messages have been learned. Once your old messages have all been learned, you need to feed to it only new arrivals, that is since the last sa-learn run. No need to keep 180 days worth of ham and spam in the temp folder!

Agreed. I rotate learning mailboxes to historical names monthly.

In other words, everybody has SpamAssassin-SPAM and SpamAssassin-HAM mail folders that sa-learn processes nightly, then on the first of the month those get moved to somthing like SpamAssassin-x-YYYYMM.

In addition, the script that launches sa-learn only tells it about learning folders that have been modified in the last three days.

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