Filter breakers

[Stephen Davies]

I use Amavis, Amavisd, Clamav, Bogofilter and milter to scan all mail.

Based on the bogofilter return value, I run bogofilter -n or bogofilter -s to 
register the result and if it is spam, I put it in a mailbox called spambox 
for review.

I haven't had a false "spam" in ages; just incorrect "hams".

When a spam gets through to my inbox, I forward it to user spam which is an 
alias for a shell script that runs bogofilter -Ns (twice) to reverse the 
registrations.

I am going to follow your advice regarding registering a bunch of stuff to see 
if it improves things.

Cheers and thanks,
Stephen

On Friday 04 April 2008 21:03, David Relson wrote:
> On Fri, 4 Apr 2008 18:10:13 +0930
>
> Stephen Davies wrote:
> > G'day David.
> >
> > I hadn't checked the month total frequencies. I get:
> >
> > X-Bogosity: Ham, tests=bogofilter, spamicity=0.000006, version=1.1.5
>
> ...[snip]...
>
> > When did headers start being included? Probably the bulk of my
> > database is several years old. Do you think something like bogoutil
> > -m wordlist.db -a 20050101 or bogoutil -m wordlist.db -c 500 might
> > help?
> >
> > Cheers and thanks,
> > Stephen
>
> Header tagging was implemented about 5 years ago.  Do you, per chance,
> have it disabled via the "-H" flag?
>
> Personally, I use tristate classification and database autoupdating
> ( "-u" flag).  This involves additional care and overhead because it's
> important to correct classification errors (because one error can lead
> to additional errors if not corrected).  I also filter messages
> classified "Unsure" to a special folder so they can be registered
> appropriately (as ham or spam).
>
> Another idea is to take a day's incoming messages and register them
> all.  As the "head:Apr" token will be in all the ham and spam,
> this will neutralize the token.  Repeating this exercise once
> per month will neutralize all the month tokens.
>
> Regards,
>
> David

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