I wrote:
If you are referring to the three headers, Delivered-To, X-Envelope-To
and Envelope-To, ... it was agreed to remove them ...
Wayne wrote:
How much does the removal of these headers change the effectiveness
and false positive rate of the PRA algorithm?
I don't know. I haven't seen any data on the effectiveness or false
positive rate of the PRA algorithm. I haven't seen any data on it at
all, but I'd sure like to.
Does anyone have a largish data base of messages (just need the
headers) categorized as spam/not-spam? I would happy to code up a
quick PRA test and run it over the dataset. Of course, without the
domains publishing records, we'll have to make some guesses as to if
the identified PRA matches the smtp client IP...
- Mark
Mark Lentczner
http://www.ozonehouse.com/mark/
markl(_at_)glyphic(_dot_)com