Excluding SpamAssassin from certain mailboxes

I have installed spamassassin on redhat system-wide and it seems to working ok. But I regularly keep sending mails to members (10K+) and during that time the systems slows down a lot. On running the top command I see that spam assassin is the culprit and it tries to check every outgoing / every bounced mail. So is there any way of configuring spam assassin to not check that particular mailbox ?
mjeetAsked:
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marko020397Connect With a Mentor Commented:
SpamAssassin checks every mail. Even if you write "all_spam_to *@mydomain.com" the SpamAssassin will still check the mail and it will not mark is as spam.

The only way I see it you should alter the /etc/procmailrc file. This is the configuration file for procmail which redirects all the mail through SpamAssassin (spamc to be more exact).

You should find these lines in your procmailrc file:
:0fw
* < 200000
| /usr/bin/spamc

Take a look at procmail directives to fine tune your spam processing. Try "man procmail", "man procmailrc", "man procmailex",...

The following rule will check mail for spam only if it is not for "postmaster@mydomain.com":
:0fw
* < 200000
* (^To|^Cc):.*postmaster@mydomain\.com
| /usr/bin/spamc
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mjeetAuthor Commented:
Thank you for your reply .. I read through the man pages but in the following examples wouldn't I have to negate the second check


The following rule will check mail for spam only if it is not for "postmaster@mydomain.com":
:0fw
* < 200000
* (^To|^Cc):.*postmaster@mydomain\.com
| /usr/bin/spamc



fo ex to

* !(^To|^Cc):.*postmaster@mydomain\.com

to NOT check the postmater mail for spam ?

and if I negate it will the mail still be delivered to the postmaster mailbox(without checking for spam that is ) ?



Thank you for reply again.
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marko020397Commented:
Of course. You are right. I copied this line from my procmailrc which is used for something else. The character ^ confused me because it is used as negator sometimes in regular expressions.
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