Mailscanner / Postfix / Procmail

John Wilcock john at
Fri Mar 23 14:00:26 GMT 2012

Le 23/03/2012 14:06, Patrick Healy a écrit :
> Traditionally I would have set up a procmail rule to handle the
> spamscore and dump SPAM in to a folder.  However, I'm seeing notes about
> the huge performance hit that I'll take if I enable procmail in the
> postfix/ file.
> My question is this - should I be using procmail to filter the SPAM that
> MailScanner/Spamassassin tag?

Firstly, the usual setup is to have MailScanner delete (or quarantine) 
all high-scoring spam and not deliver it to the user's mailbox, which 
will reduce the load on postfix and the MDA.

But that still leaves the low-scoring spam messages which users don't 
generally want to see in their main inbox. Procmail is one solution for 
moving them to a folder, but there may well be other more efficient 
methods. I use dovecot as my MDA, for example, and have set up a global 
dovecot-sieve rule to move spam to a Junk folder.


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