YAM - Yet Another Mailer (#2) - YAM's spam filter and OS3 (#36) - Message List
Some of you had quite a hard time training YAM's spam filter. I think most of the complaints were from people running OS3. Today I found the reason for this misbehaviour. The implementation of the log() function rejected a small but still valid range of values from the computation and hence the spam recognition failed more often than necessary. The next nightly build will fix this.
The OS4 and MOS builds never suffered from this bug, as here different implementation are used.
So, if the spam filter didn't work as expected until now then please give it another chance and report your experiences here.