[Dovecot] help on writing a rule for perventing spam

[Giuliano Gavazzi]

On W 21 Jan, 2009, at 06:34 , Sophia Alikhani wrote:

>
> Hi
> I used qmail + dovecot-1.1.7 + dovecot-sieve + ....
> now everything works well but there are many spam in Bulk folders from
> every user address to their address for example
> from
> user1 at mydomain to user1 at mydomain
> in the real the sender and reciever are the same .
> they are spam but since everyday , everyvirtual user has many of these
> spams in their Bulk i need a rule in dovecot.sieve to prevent them
> Can anybody help me for writing this rule.

you are much better off rejecting those even before seing the DATA, if  
that address is in the envelope sender, or after, if it is only in the  
From: message header. No need to accept them, so no need for dovecot  
to even see them.
So this is an issue you should take, if necessary, to the mailing list  
of your MTA of choice.

Giuliano