[GRASS5] Spamfilter added for RT Bugtracker mails

Bernhard Reiter bernhard at intevation.de
Mon Jan 12 08:29:13 EST 2004

On Mon, Jan 12, 2004 at 11:17:27AM +0100, Markus Neteler wrote:
> On Mon, Jan 12, 2004 at 10:46:32AM +0100, Bernhard Reiter wrote:
> > On Mon, Jan 12, 2004 at 10:03:33AM +0100, Markus Neteler wrote:
> > > To get rid (hopefully) of most spams arriving in 'grass5'
> > > mailing list via bugtracker, I have added a filter rule
> > > to pipe RT mails through 'bogofilter':
> > 
> > Note that we already have a spam filter running
> > here at Intevation before we accept entries in the bugtracker.
> > We are running spamassasin.
> > It also contains a bayesian spam filter component
> > in additions to other methods.
> > As you can see there is no total protection.
> > However we tuned it to minimise false positives.
> Maybe that's the problem - it's not catching some obvious
> mails. Note that I have additionally implemented some 60
> rules in procmail to catch further spams (including some
> missed from RT spamassasin).

Oh nice.
I didn't know that you were putting so much effort into the tuning.  :)

> Started in August 2002, these procmail rules have been catching
> more than 2700 spams. A major help for me as I didn't had to
> eliminate them from mailman's admin tool (otherwise mailman
> would catch them except for RT mails).

I've implemented something similiar for the FFII and its mailman
2.0.x installation. Hold spam message will automatically be removed.
2.1.4 versions might be able to do this themselfs.

> > Let us know the number of false positives over the next month.
> > I'd rather have 10 false negatives than 1 false positive.
> Will do. It was trained on 6000 spams (filtered from my personal box)
> and some thousand hams. So far I had 2 false positives which is
> an exciting good ratio. I'm pretty happy with bogofilter
> and want to let you participate :-)
> So please don't feel offended, RT is configured well. I don't
> see a problem to filter again, just to minimize the remaining
> rubbish passing RT spamassasin in that current configuration.

No problem.
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