Bogofilter on an imap server

I've been running bogofilter for some time with kmail.  Now,
however, all mail 
is coming from an imap server (dovecot+procmail), so I'd
like to be able to 
run it at server level.

Each user has his own bogofilter database.  Is it sufficient
to put

      :0
      * ? /usr/bin/bogofilter
      spam/.

at the beginning of each .procmailrc?  That's what is
recommended in the 
document I found on-line, but I'm not sure I understand it. 
What tells it 
where to file the spam?  Do I set a destination line in the
usual way?

Anne

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On Thu, 30 Aug 2007, Anne Wilson wrote:

> I've been running bogofilter for some time with kmail. 
Now, however, all mail 
> is coming from an imap server (dovecot+procmail), so
I'd like to be able to 
> run it at server level.
> 
> Each user has his own bogofilter database.  Is it
sufficient to put
> 
>       :0
>       * ? /usr/bin/bogofilter
>       spam/.
> 
> at the beginning of each .procmailrc?  That's what is
recommended in the 
> document I found on-line, but I'm not sure I understand
it.  What tells it 
> where to file the spam?  Do I set a destination line in
the usual way?

Don't use it.  It neglects to filter the body through
bogofilter,
doesn't do unsure treatment or error recovery.

Where did you find it? Please tell the author of the site to
correct it
or take it down, and please Cc: me; if it's somewhere in the
official
bogofilter pages (www.bogofilter.org or
bogofilter.sourceforge.net),
just follow up on this post and we'll correct it.

WRT delivery, check the procmailrc(5) man page, the trailing
/. is
special to procmail.

-- 
Matthias Andree
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On Friday 31 Aug 2007, Matthias Andree wrote:
> On Thu, 30 Aug 2007, Anne Wilson wrote:
> > I've been running bogofilter for some time with
kmail.  Now, however, all
> > mail is coming from an imap server
(dovecot+procmail), so I'd like to be
> > able to run it at server level.
> >
> > Each user has his own bogofilter database.  Is it
sufficient to put
> >
> >       :0
> >
> >       * ? /usr/bin/bogofilter
> >       spam/.
> >
> > at the beginning of each .procmailrc?  That's what
is recommended in the
> > document I found on-line, but I'm not sure I
understand it.  What tells
> > it where to file the spam?  Do I set a destination
line in the usual way?
>
> Don't use it.  It neglects to filter the body through
bogofilter,
> doesn't do unsure treatment or error recovery.
>
> Where did you find it? Please tell the author of the
site to correct it
> or take it down, and please Cc: me; if it's somewhere
in the official
> bogofilter pages (www.bogofilter.org or
bogofilter.sourceforge.net),
> just follow up on this post and we'll correct it.
>
> WRT delivery, check the procmailrc(5) man page, the
trailing /. is
> special to procmail.

I now have bogofilter handling mail on my imap server.  It
references the 
database already built in the user's home directory.  Here
is what I needed 
to add to .procmailrc:

:0fw
| bogofilter -e -p

:0e
{ EXITCODE=75 HOST }

:0:
* ^X-Bogosity: Spam, tests=bogofilter
$.INBOX.a-Spam/

:0e
{ EXITCODE=75 HOST }

:0:
* ^X-Bogosity: Unsure, tests=bogofilter
$.INBOX.a-Unsure/

:0e
{ EXITCODE=75 HOST }

The ':0e' stanzas create a neat escape on error.  These
recipes are for use on 
a maildir format server.  If used with mbox mail the
trailing '/' should be 
removed from each destination line.

Although this hasn't been the heaviest day for spam, I can
confirm that both 
spam and unsure messages are being processed correctly.

Hope that helps others.

Anne

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Anne Wilson <cannewilsongooglemail.com> writes:

> The ':0e' stanzas create a neat escape on error.

Only that it's a design failure that you have to handle such
things
explicitly, IOW, the default is unsafe...

-- 
Matthias Andree
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