dovecot - Jun 2011 - Sieve question

I have successfully setup Postfix -> Dovecot with virtual users and spam
filtering with spamassassin. Now the last remaining part is for the user defined
rules. Let me describe my environment and what I am trying to achieve.

I have Postfix setup to call spamc and deliver to Dovecot according to the
master.cf line below.

--------------------------------------------------------------
dovecot   unix  -       n       n       -       -       pipe
   flags=DRhu user=vmail:vmail argv=/usr/bin/spamc -u vmail -e
/usr/lib/dovecot/deliver -d ${recipient}
--------------------------------------------------------------

The emails get checked by Spamassassin and are delivered to the users's
mailbox
(/home/vmail/username). I use an actual username (dhav) and not email address
(dhaval at example.com). Things are working fine with that.
>From reading http://wiki.dovecot.org/LDA/Sieve I see that Sieve can do
global
and user specified filtering. So I am planning to put the following rule into
the global script so spammy emails go to the user's INBOX.spam folder.

--------------------------------------------------------------
require "fileinto";
if header :contains "X-Spam-Flag" "YES" {
  fileinto "spam";
}
--------------------------------------------------------------

My first question is, where is this global script? Do I configure the
"sieve_global_dir = /etc/dovecot/sieve/"? What about he filename?

Most users will not need any additional rules. There are some users that do and
I am having a difficult time figuring out how it would be setup. My second
question is the following. Is there a way in the global script to check if there
is a file called /etc/dovecot/sieve/username or
/home/vmail/username/personal_sieve_script and include it?


I was using maildrop before this and procmail before that so I apologies for
sounding stupid if this is not how Sieve scripts work.

I am by no means tied the methods I describe above. If anyone knows of a better
way to achieve what I am trying to do, I would appreciate if you let me know of
it.


Thanks,
Dhaval

Op 13-6-2011 4:41, Dhaval Patel schreef:
> --------------------------------------------------------------
> require "fileinto";
> if header :contains "X-Spam-Flag" "YES" {
>    fileinto "spam";
> }
> --------------------------------------------------------------
>
> My first question is, where is this global script? Do I configure the
> "sieve_global_dir = /etc/dovecot/sieve/"? What about he filename?
http://wiki.dovecot.org/LDA/Sieve/Dovecot#Executing_Multiple_Scripts_Sequentially

Use sieve_before. Script name is mainly important when a directory is 
specified, in which case it must end with .sieve. The directory/file can 
be located anywhere you like.
> Most users will not need any additional rules. There are some users that do
and
> I am having a difficult time figuring out how it would be setup. My second
> question is the following. Is there a way in the global script to check if
there
> is a file called /etc/dovecot/sieve/username or
> /home/vmail/username/personal_sieve_script and include it?
Not like that. There is an include extension, but that is not able to do 
optional includes (maybe it should). You can use multiscript support for 
this too. Make the sieve_before setting dependent on the user, make it 
point to two alternative directories, each containing (symlinks to) a 
different set of scripts.
> I was using maildrop before this and procmail before that so I apologies
for
> sounding stupid if this is not how Sieve scripts work.
>
> I am by no means tied the methods I describe above. If anyone knows of a
better
> way to achieve what I am trying to do, I would appreciate if you let me
know of
> it.
Regards,

Stephan.