I have recently implemented smartsieve, though have not gotten it to integrate directly w/roundcube.  It is a web-based interface to sieve.  We also use spamassassin, and I have taken a brute-force approach to installing sieve filters for each user.  Kinda ugly initially, but it works.  My account provisioning script now adds this filter for all new accounts.

If anyone knows how to set sieve up to do a top-level global filter I'd sure like to know about it.

http://smartsieve.sourceforge.net/

On 9/4/07, Christine Kluka <cvkluka@cerebellum.biz> wrote:

I've been reading about sieve, a server-side mail filter for imap, which
would help a lot.  But I can't find anything on how to configure it with
roundcube - only with squirrelmail and other clients.  Has anyone tried it
with roundcube?  Any advice on how to make it work?

On Tue, 4 Sep 2007 09:53:13 -0500, chasd <chasd@silveroaks.com> wrote:
>> I'm using procmail too, in my machine to move mails marked as spam.
>> But the
>> problem I have, is that all the users of the server want a kind of
>> spam
>> filter in Roundcube, because they want to redirect the spam marked
>> mails to
>> another folder than inbox, and they are simple users so they can't use
>> procmail. May be exists some implementation of filters in
>> roundcube? :D
>> I'm using postfix+spamassassin+amavis-new. Do you know some scheme
>> to solve
>> this problem?
>
> Use DSPAM, it is more accurate than SpamAssassin for us. The DSPAM
> binary replaces procmail as the MDA, and it can be configured to move
> messages marked as spam to a separate user directory rather than a
> quarantine.
>
> Pros:
> Each user trains the filter as they desire, so one user's opinion of
> what is spam doesn't conflict with another user's opinion.
> No rules to update
> Very accurate, keeps up with changes in spam techniques
>
> Cons:
> Processor and database intensive, you may need bigger hardware to
> handle it.
> User's are lazy and don't want to train the filter
> The filter needs a baseline of 1500 messages to start making good
> decisions
>
> IMHO, the MUA isn't the place for filtering.
> We also use greylisting before the message gets to DSPAM.
>
>
> Charles Dostale
> System Admin - Silver Oaks Communications
> http://www.silveroaks.com/
> 824 17th Street, Moline  IL  61265
>
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