On Fri, 29 Jan 2010 08:26:44 +0100 "[email protected]" <[email protected]> wrote:
> -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 29/01/2010 02:05, Stevan Bajić wrote: > > On Thu, 28 Jan 2010 14:07:31 +0100 > > "[email protected]" <[email protected]> wrote: > > > >> yes, if email total score is above a fixed threshold, AND dspam > >> doesnt agree with this, then email is retrained into dspam. > >> It's the same mechanism than SA autolearn and, AFAIK, plugin crm114 > >> use this to retrain crm. > >> > >> I know that will be introduce some possible mistakes, but i think > >> balance between good and right will be ok. > >> What's your opinion on this ? should i try to do this, or it's better > >> to let DSPAM learn by himself and manually retrain it on error ? > >> > > This all depends on your needs. Do your users train DSPAM, CRM114 > and/or SA? > > > > Or to put it the other way around: If you trust so much SA then why use > CRM114 and DSPAM at all? What is the point? SA has a bayes engine it > self so there is no much benefit in using DSPAM and/or CRM114 (with it's > default setup/configuration). > > > > Why do you use 3 Anti-Spam engines when each of them depend on each > other and one of them can drag the accuracy of all the others down? What > is the reason that you use a heuristic engine like SA and two > statistical like CRM114 and DSPAM? > > > > Could you write a little bit about how your users are using the > Anti-Spam system? Do they train the engine? Are they able/allowed to > train? Does every user has his own data set or do they all share the > same data for ham/spam? What MTA do you use? > > > our users are able to train dspam, crm114 and SA. > They share the same dateset. > We use postfix as global MTA, but we dont use it to retraining. (no > special alias) > In order to retrain FP, our customers can move email into 2 imap > folders in their mailbox, one for spam learning, the other for ham > learning. > it feeds 2 special folders on one centralized server from which we can > apply learning scripts. > This script do sa-learn for SA and for DSPAM, it checks email headers > and if dspam is not agree with classification, email is retrained with > command: > /usr/bin/dspam --client --user amavis --class=spam --source=error (or > class=ham of course) > > This retraining increase greatly accuracy of the 3 engines. > What IMAP/POP server are you using? > Autolearning is more tricky because it will massively rely on > heuristics engine (main scoring) to adjusts statistical engine (SA > bayes, CRM) on the fly. > But i'm agree with you, what's the point to use the 3 statisticals > engine this way. > For SA, it's OK, but for CRM114 and DSPAM, I'm wonder if it's really > clever. > > So I think i will let DSPAM do his job, and continue use his scoring > to balance the others. > It's the way it works actually, and I'm really satisfied: accuracy is > great and FP are very low. > > And may be I will do the same with CRM114. > > So I will give it a try to dspam plugin at > http://eric.lubow.org/projects/dspam-spamassassin-plugin/ because, if > i'm understand correctly, it can be used to balance scoring more > precisely. > > Thanks for your help on this > Regards, > Tonio > > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.9 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAktijbMACgkQ8FtMlUNHQIOSOwCaAqfbx+fcmBAUy7mCFFzjb4Ys > wdcAn2433ELBLnRGYiuSQnLjCy8LFz7z > =05gq > -----END PGP SIGNATURE----- > > > ------------------------------------------------------------------------------ > The Planet: dedicated and managed hosting, cloud storage, colocation > Stay online with enterprise data centers and the best network in the business > Choose flexible plans and management services without long-term contracts > Personal 24x7 support from experience hosting pros just a phone call away. > http://p.sf.net/sfu/theplanet-com > _______________________________________________ > Dspam-user mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/dspam-user ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com _______________________________________________ Dspam-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dspam-user
