Re: Integration of SpamAssassin with Evolution 1.4

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On Mon, 2004-11-22 at 02:49, A. Lanza wrote:
> I read an article explaining how to integrate SpamAssassin with
> Evolution 1.4 and decided to try it. I'm running SpamAssassin as a
> daemon (spamd) and filtering mail using a rule that pipes the messages
> to SpamAssassin client (spamc -c) and checks for the return code to
> clasify messages as spam or not.
> 
> I've noticed that fetching mail is much more slowly this way than
> before, but it's not because of processing time taken by SpamAssassin,
> processor usage stays low. Anybody have an idea of what could be
> happening?

I would recommend that if you are processing every message you get
including mailing list messages through spamassassin that you change the
filtering processes to skip mailing lists.  I have seen very few spam
type messages come across mailing lists.  Setup your filters to identify
mailing lists and stop processing.  Then have the filter that calls
spamassassin.  It will only be invoked on messages that more likely to
be spam.  I think you will find your mail fetch process will run much
faster.  Don't forget to put the stop processing rule in the mailing
list filters.

As to what the problem is.  Even if you are using spamd (which is more
efficient that calling spamassassin directly every time) evolution still
has to load the script called by the filter for each message and invoke
spamc (another load) on each message.  In a typical MTA setup you would
have sendmail (or the MTA of your choice) running some kind of milter
that would be already loaded all the time.  When a lot of messages would
hit it it would sequence through the messages without having to load the
program each time.  That is probably what is causing your speed problem.

-- 
Scot L. Harris
webid@xxxxxxxxxx

In every non-trivial program there is at least one bug. 


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