I am testing KS an it seems working really fine. It would be great to add this field to memo because in a situation with many users it is impossible to check for false positives for everyone (although there are a few of theese).

It can be done easily looking to $Users view of the names and adding it to the memo in addition of the other fields that KS adds (like KS_BL_PROB for example) . In this way we can use it as a reader field and every user can manage its spam much more easily and does not have to deal with everyone's spam.

Meanwhile I am doing it with an agent running on the mailspam db.