Spamassassin very slow

[lyd mc]

Hi guys,

Last day my mail server became very slow. I haven't found any mysterious errors/warnings in /var/log/message and maillog. When I disable spammilter in sendmail it became fast.

What causes spamassassin to slow?

Here is my config:

snippet from sendmail.mc

        FEATURE(`local_procmail_lmtp')
        . . .
        FEATURE(dnsbl,`all.rbl.jp')dnl 
        dnl MAILER(local) 
        MAILER(procmail)dnl
        MAILER(smtp)
        INPUT_MAIL_FILTER(`spamassassin',`S=local:/var/run/spamass-milter.sock, F=,       T=C:15m;S:4m;R:4m;E:10m')dnl
        INPUT_MAIL_FILTER(`clmilter', `S=local:/var/run/clamav/clmilter.sock, F=, T=S:4m;R:4m')dnl
        define(`confINPUT_MAIL_FILTERS', `clmilter,spamassassin')dnl
 

I have .procmailrc in every home directory of my mail users and it goes like this:

             :0fw: spamassassin.lock
             | /usr/local/bin/spamc

             :0:
             * ^X-Spam-Level: \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
             /dev/null

            :0:
            * ^X-Spam-Status: Yes
            Probably-Spam

I also have RulesDuJour installed and spammassassin --lint does complain about it.

spamassassin process:

11894  ??  Ss     0:30.74 /usr/local/bin/spamd -c -d -r -m 20 --round-robin /var/run/spamd/spamd.pid (perl5.8.8)
11903  ??  Ss     0:06.55 /usr/local/sbin/spamass-milter -f -p /var/run/spamass-milter.sock

When my mail server became slow, my mqueue grows rapidly and there are lots of spamc processes.

Please help, thnx.

alyd