Re: spam scores being neutralized by bayes
Derek Atkins <warlord-DPNOqEs/[email protected]>
| Newsgroups | gmane.mail.virus.maiamailguard |
|---|---|
| Message-ID | <[email protected]> |
Ed <[email protected]> writes: > As I read it, the issue was SPAM was being scored as NOT SPAM because > of the negative BAYES_00 score. In this case you'd have to teach > BAYES that it IS spam. > > My route takes care of the teaching issue as the bayes scores are > transient because they are refreshed on a regular basis lest your > database become ginormous before too long. > > My method can also fix scores of other non-bayes tests. > > And you're right BAYES_00 is rare, so fix it at some benign value like 0. No, it's not rare at all if you train it correct. It's just rare to have a SPAM message meet BAYES_00. I have HAM messages that reach BAYES_00 all the time, so I'd LIKE a BAYES_00 score to give a lot of weight. > --Ed -derek > On 07/07/2015 11:25 AM, Derek Atkins wrote: >> Or better yet, you could just teach the Bayes filter that it's not spam! >> :) Rarely do I find a spam message that matches the BAYES_00 rule. >> >> -derek >> >> Ed <[email protected]> writes: >> >>> Hi, >>> >>> In local.cf set your own score : >>> >>> score BAYES_00 0.0 ## pick any number you want here >>> >>> Any scores you set in local.cf over ride any built in scoring for any token. >>> >>> --Ed >>> >>> On 07/07/2015 05:43 AM, Jason Street wrote: >>>> I hope are small group of Maia users are keeping well. >>>> >>>> I am slowly getting to grips with Maia one problem I am having is with >>>> the scores being assigned to email and as a result a lot of genuine spam >>>> is reaching inboxes. >>>> >>>> The problem seems to be that Bayes (?) is neutralizing the scoring and >>>> as a result email that would have been spam is allowed through. >>>> >>>> For example this scoring for spam that reached inbox >>>> >>>> 1.700 URIBL_DBL_SPAM Contains an URL listed in the DBL blocklist >>>> 1.449 RCVD_IN_BRBL_LASTEXT (No description provided) >>>> 0.437 HTML_IMAGE_RATIO_02 HTML has a low ratio of text to >>>> image area >>>> 0.100 DKIM_SIGNED Domain Keys Identified Mail: message has a >>>> signature >>>> 0.001 HTML_MESSAGE HTML included in message >>>> -0.001 SPF_PASS SPF: sender matches SPF record >>>> -0.100 DKIM_VALID Message has at least one valid DKIM or DK >>>> signature >>>> -0.100 DKIM_VALID_AU Message has a valid DKIM or DK signature >>>> from author's domain >>>> -1.900 BAYES_00 Bayesian spam probability is 0 to 1%:) >>>> >>>> What is the best way to resolve this? >>>> >>>> ¬¬JS >>>> _______________________________________________ >>>> Maia-users mailing list >>>> [email protected] >>>> http://www.renaissoft.com/cgi-bin/mailman/listinfo/maia-users >> -- Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory Member, MIT Student Information Processing Board (SIPB) URL: http://web.mit.edu/warlord/ PP-ASEL-IA N1NWH [email protected] PGP key available _______________________________________________ Maia-users mailing list [email protected] http://www.renaissoft.com/cgi-bin/mailman/listinfo/maia-users