Those are some discouraging numbers, but it sounds like the algorithm is a good one. Thanks for answering my questions - that's exactly what I wanted to know.
Tom Craig R.Hughes ([EMAIL PROTECTED]) wrote: > > TOTAL SPAM NONSPAM > 3214 2280 934 SMTPD_IN_RCVD > > So there's about twice as much spam as nonspam sent through that > mail server. The way scores are set is related to the relative > frequency of spam vs nonspam triggering a particular rule, but > the optimization is done by a genetic algorithm which is able to > effectively look at the huge number of combinations of rules > triggering in deciding how to allocate a score. For example, it > could be that some rule which looks really spammy by the > SPAM:NONSPAM ratio metric might actually get a low or negative > score, because in spam it always occurs in combination with a > bunch of other even better signs of spam, while in nonspam it > occurs alone. > > C > > On Thursday, July 18, 2002, at 12:55 PM, Tom Grandgent wrote: > > > That software costs $1000 minimum. However, there is an evaluation > > version available. I don't see why spammers would use the eval version > > of a full-fledged mail server instead of one of the great many free > > or cheap programs designed solely to do mass mailing, but I accept that > > it's within the realm of possibility. > > > > I would be interested in seeing the ratio of spams detected versus > > false-positives based on this test. Is that what determines the > > "default score" for a test, by the way? Or is it something else? > > > > > > Vince Puzzella ([EMAIL PROTECTED]) wrote: > >> > >> It's probably because a lot of small-time, DYI spammers use that > >> software to perform bulk mailing. > >> > >> -----Original Message----- > >> From: Tom Grandgent [mailto:[EMAIL PROTECTED]] > >> Sent: Thursday, July 18, 2002 3:30 PM > >> To: [EMAIL PROTECTED] > >> Subject: [SAtalk] SMTPD_IN_RCVD test is unfair discrimination...? > >> > >> > >> Hi, > >> > >> I run Ipswitch Mail Server, a popular mail server on Win32, > >> and recently > >> > >> one of my users had a legitimate email he sent flagged as spam by > >> SpamAssassin running on the receiving server. What caught my > >> attention > >> was the line: > >> > >> SMTPD_IN_RCVD (2.1 points) Received via SMTPD32 server > >> (SMTPD32-n.n) > >> > >> (SMTPD32-n.n) is how IMail identifies itself. So this test is saying > >> that > >> if the message is coming from an IMail server, it's probably spam. > >> Right? > >> To my knowledge, IMail is as secure against spammers as any other good > >> mail > >> server. It's dirt simple to configure as a closed relay. The > >> documentation strongly recommends doing this and explains the problems > >> with open relays in detail. > >> > >> I searched for more information on this test on the SpamAssassin web > >> site > >> and the list archives but couldn't find anything. Can anyone explain > >> the > >> reasoning behind this test? > >> > >> Thanks, > >> > >> Tom > >> > >> > >> ------------------------------------------------------- > >> This sf.net email is sponsored by:ThinkGeek > >> Welcome to geek heaven. > >> http://thinkgeek.com/sf _______________________________________________ > >> Spamassassin-talk mailing list [EMAIL PROTECTED] > >> https://lists.sourceforge.net/lists/listinfo/spamassassin-talk > >> > >> > >> ------------------------------------------------------- > >> This sf.net email is sponsored by:ThinkGeek > >> Welcome to geek heaven. > >> http://thinkgeek.com/sf > >> _______________________________________________ > >> Spamassassin-talk mailing list > >> [EMAIL PROTECTED] > >> https://lists.sourceforge.net/lists/listinfo/spamassassin-talk > >> > > > > > > > > ------------------------------------------------------- > > This sf.net email is sponsored by:ThinkGeek > > Welcome to geek heaven. > > http://thinkgeek.com/sf > > _______________________________________________ > > Spamassassin-talk mailing list > > [EMAIL PROTECTED] > > https://lists.sourceforge.net/lists/listinfo/spamassassin-talk > > > > > ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Spamassassin-talk mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/spamassassin-talk
