configure spamassassin to only check incoming email

[Mike Burger]

> Hey list,
>
> I'm using sendmail to handle all my incoming and outgoing email and now
> I've ran into a problem related to spamassassin.
> Because spamassassin also checks outgoing mail, sending outgoing mails
> always takes about 3-4 seconds.
> Normally this wouldn't be a problem, but my boss wants to send a
> newsletter every month to quite a number of users, and this is undoable
> if it takes 3-4 seconds per email.
>
> I've tested it without spamassassin and it only took like 0.3-0.5
> seconds, which is doable.
>
> Another solution to my problem is ok as well, as long as the send-time
> gets decreased to around <0.5 seconds.

It all revolves around how you've implemented SA.  While it is possible to
use it in a milter style fashion, the more common way is to run spamd, and
call spamc from procmail, at delivery time.

Noting that if your local PCs have been compromised, and are now part of a
botnet, they're not going to send their spam out through your mail server,
anyhow, it might be simpler to run via procmail at delivery, and bypass
scanning outbound mail.

-- 
Mike Burger
http://www.bubbanfriends.org

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