On Sun, 06 Feb 2011 12:56:55 +0100 Pascal Volk <user+dovecot@localhost.localdomain.org> wrote:

On 02/06/2011 10:36 AM Manfred Lotz wrote: ...

...

My question now: Is it correct that then I cannot longer use maildrop and would need to switch do dovecot-lda?

Yes, only dovecot-lda and Dovecot's lmtp are able to store messages in mailboxes using dbox format. But both can use the sieve plugin for mail filtering.

Regards, Pascal

Thanks much. That is what I thought.

I tried to figure out how to use dovecot-lda and sieve. The most difficult part was to find documentation how to code the sieve file. But I got it working.

The next question is how to incorporate bogofilter?

The only way I figured out to do that was to have a small script like this:

#! /bin/sh

/usr/bin/bogofilter -u -e -p | /usr/lib/dovecot/dovecot-lda -a manfred

and to name that script as mda in fetchmail's .fetchmailrc file.

Is there a better way?

-- Manfred

On Mon, 7 Feb 2011 13:59:12 +0100 Juergen Daubert <jue@jue.li> wrote:

On Sun, Feb 06, 2011 at 10:36:29AM +0100, Manfred Lotz wrote:

...

Hi there, I'm using Dovecot 2.0.9-1 under Arch Linux.

Currently, I have Maildir configured, and I move all my emails into dovecot by using this sequence:

1. cron starts fetchmail periodically under user manfred to collect my mails from various email accounts.
2. In ~/.fetchmailrc I have configured /usr/bin/maildrop as MDA.
3. In ~/.mailfilter (used by maildrop) I have extensive filtering in place and call bogofilter (by using xfilter) to classify spam mails.

This works fine so far. Now I'd like to migrate to dovecot's new format multi-dbox.

My question now: Is it correct that then I cannot longer use maildrop and would need to switch do dovecot-lda?

No, you can continue using maildrop. But you must finally use dovecot's lda to deliver the mail into the mailstore.

Instead of

to <some_mail_box>

use the following within your rules

/usr/lib/dovecot/dovecot-lda -m <some_mail_box>

and the same without the -m option as the last rule in your .mailfilter.

Thanks, Jürgen. Yeah, you are right. It is a slight overhead (an additonal call to dovecot-lda) but would do it.

If I would want to switch from maildrop to dovecot-lda what would be the best way to integrate bogofilter in the process. My idea of defining an mda as a script which chains bogofilter and dovecot-lda like this

/usr/bin/bogofilter -u -e -p | /usr/lib/dovecot/dovecot-lda -a manfred

would do but perhaps there is something better.

-- Manfred