Hi everyone, I've searched a little through the archive but found not much about that. Right now I'm using DBM for bayes. I know the officially recommended storage is a SQL DB (though I don't know why). I have a mysql server running on my mail system and tried using it for bayes a while ago (with SA 3.1.0) but didn't see lower scan times. For a local RDBMS I think SQLite is a very good thing, but there was a list post where somebody said ist not suitable for SA (though README.bayes mentions it). According to the bayes benchmark in the wiki (http://wiki.apache.org/spamassassin/BayesBenchmarkResults), SDBM is the fastest store (though there are no sqlite numbers), but I wonder why it's not mentioned much. I'll probably run the bayes benchmark myself (with sqlite, sdbm and dbm), but somebody has probably some experience to share.
Regards, Jakob