[MlMt] How is span score computed?

[William Allen]

I subscribe to my local newspaper’s daily bulletin. Recently I noticed I wasn’t getting it anymore and after looking a the junk folder saw it had a spam score of 4.0. Just looking at the mailings I can’t see any difference. Is there any way to understand what is triggering a score for a particular piece of mail? Likewise, is there a way to override the filter for a particular sender?