From: Jason Gurtz [mailto:[EMAIL PROTECTED]
> > I was curious to know if anyone else has been playing around with
> > subject-line blocking, as discussed in the thread a week or so ago.
> I haven't, but am interested. I'm just curious about what kind of false
> positive rate might be experience
Cormack, Ken wrote:
> My users report any spam that slips through, to an Exchange public folder
> called "spam". I then run a series of VB scripts against any such reported
> spam, to extract relay Ips, subject lines, and other such things that I can
> add to my various rules or databases.
It se
From: David F. Skoll [mailto:[EMAIL PROTECTED]
> It seems to me it would be far more productive and less labour-intensive
> to simply feed those messages into a Bayesian analyzer.
That may be the case. However, the VB scripts have done a pretty good job
so far, are well known and understood by
Cormack, Ken wrote:
> Would a Bayes analyzer deal with a spammer's efforts to "personalize" or
> vary a subject line, with things such as:
> "Hey [EMAIL PROTECTED], claim your dream vacation - 07/15/05"
> "Hey [EMAIL PROTECTED], claim your dream vacation - #GGFS85F"
> ...any more effectively tha
In defense of Ken's subject-blocking system, my personal experience with
Bayesian systems for large user bases has been subpar. In short, the
benefits are severely outweighed by the server load. Of course, this is
speaking about SpamAssassin's current Bayesian implementation.
I know that CanIT h
McCarthy, Douglas J wrote:
The good news is that it catches Out of Office AutoReplies exactly
right!
The bad new is that it's not catching the User-Agent or X-Mailer things
at all. I know how to set them, and when they get delivered the headers
are indeed there, but if I uncomment that VacDeb
Craig Green wrote:
...snip...
Note that since you're in filter_end, the HEADERS file *is* available,
so you can just parse that if you'd prefer. There was nothing wrong
with your initial logic; it's just that parsing the file on disk is
slower *and* it takes more code than using the MIME enti
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