Craig R Hughes writes:

> The right way is actually to have the AWL form a prediction based on a
> more sophisticated predictive model, including a zero-frequency
> estimate for senders who are not in the whitelist.  The weight
> provided by the AWL in cases where there is a-priori data about a
> sender should depend on the number of messages sent so far, instead of
> using the a-priori mean as 50% of the final score, the %age should
> shift over time.  There are well known ways of doing this optimally,
> but my reference book on the subject is up in Sausalito, and I'm down
> here in Menlo Park, 60-odd miles away.  I suppose I could go look
> things up online...  If only I hadn't smoked all that pot as a
> youngster, my memory might be good enough now to do it w/out reference
> books :) Or if I were less mathematically lazy, I could probably
> derive it from stuff I do remember.

Does this also factor in the total number of senders seen in addition to
the number of messages received?  It seems like that's also a factor.

Also, it seems like we're lacking a good way to whitelist addresses
found in our own outgoing email in addition to incoming email.  One
could Cc: oneself and have procmail pipe to "spamassassin -W" option,
but I only want messages in the To: or Cc: to be added.

Dan

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