On Monday, January 23, 2006, 8:13:26 AM, Dan Bongert wrote: > I recently did an email server change/upgrade from Sendmail on FreeBSD (w/ > Spamassassin 2.6.4) to Postfix on RHEL 3 (w/Spamassassin 3.1). On both > systems, Spamassassin is called from user's .procmailrc files--not every > user wants to be running SA (I'm not quite sure why).
> I wasn't able to convert people's Bayes databases from one system to the > other--the Linux system didn't recognize them at all as valid DB files, so > everyone had to start Bayes over from scratch. > Here's my problem: the new SA doesn't work nearly as well as the old one. > Some of my users are reporting 50% false negatives in their inbox in the > morning, even after their Bayes autolearning has kicked in. We run a nightly > learning script for them, and have been telling everyone to put any and all > false negatives in the appropriate mailbox so that sa-learn can snag them. > For my own experiences, I'm seeing a lot more spam that's being autolearned > as ham--scores of 0.0 and even negative ones for things that to my eyes are > very obviously spam. > It's a pretty vanilla set up so far--are there any recommended optional > rules sets or tweaks I haven't discovered for 3.1 yet? Unfortunately, I > don't have any hard numbers comparing the set ups, just lots of complaints > that the new version isn't as good. You may want to check for a broken trust path. (See wiki.) Also be sure to enable network tests and apply for rsync access for RBL and SURBL zone files if you handle a lot of messages (>100k messages/day). Cheers, Jeff C. -- Jeff Chan mailto:[EMAIL PROTECTED] http://www.surbl.org/
