On Fri, 20 Jun 2008 12:50:20 +1000 david <[EMAIL PROTECTED]> wrote: > On Fri, 2008-06-20 at 07:57 +1000, Mary Gardiner wrote: > > On Thu, Jun 19, 2008, Sean Murphy wrote: > > > All, > > > > > > I am after a good Anti spam software program for Linux which is > > > shell based. I am aware of Spam assassign. But I would like to > > > know if there is anything else which is better? > > > > Better could mean a few things in the context of spam filtering, > > could you clarify which of these features is more important to you: > > > > 1. overall accuracy (false negatives and false positives) > > 2. fewest number of false negatives (spam that gets through to your > > inbox) > > 3. fewest number of false positives (good mail that ends up marked > > as spam) > > 4. good accuracy when in the default configuration, no twiddling > > required > > 5. good for processing large volumes of mail without insane > > resources > > > > I use SpamAssassin and find it does really well, but it falls down > > at #4 and #5. I have to train the Bayesian[1] classifiers on all my > > mail in order to get good-to-me accuracy, so I am certainly not > > relying on the default configuration. (I suspect I'd do just as > > well switching entirely to a Bayesian system, but since > > SpamAssassin is now doing fine I have not done so). > > > > And it's a resource hog, it sometimes takes 8 seconds to scan a > > mail on my OK-standard desktop system. So if you were receiving > > more than an email about every 8 seconds you'd be looking at > > performance tuning and additional less hoggy measures, or at > > alternatives. (Everything that processes the full body of an email > > is somewhat resource intensive, but I understand that SA is not > > great.) > > > I'm using Bogofilter (bayesian filter) to sort spam into "good", "bad" > or "unsure" at a user level. I've got a cron shell script that passes > manually sorted "unsure" email through the filter hourly for training > purposes and it works really well at the client level. > > I don't know if there is a package to do that. I wrote the script > myself, which means that it is crude and simple :) > > This doesn't stop spam... it just means you never have to read it.
I use bogofilter in connection with Sylpheed as a simple pop client. It is remarkably effective, and with the default settings has almost no false positives. It is interesting with a Bayesian filter to notice that sometimes the spammers seem to try something new. A few spam messages get through, but with Sylpheed you just mark them as spam as they come in and it learns very quickly. Alan > > David. > > -- > SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ > Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html > -- Alan L Tyree http://www2.austlii.edu.au/~alan Tel: 04 2748 6206 Fax: +61 2 4782 7092 FWD: 615662 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
