[Centos] clamav-milter verification on Centos 3.3

[listuser at javelinux.com (Joe Polk)]

Hello!
I'm running clamav-milter, clamd, and sendmail on CentOS 3.3 (RHEL3). I'm
trying to verify that my milter works. I've sent test emails from
testvirus.org but they don't appear to be getting flagged. I don't see
anything in the logs to indicate they were. Is there a sure-fire way to know?
Also, how should the clamd work? Does it watch the filesystem? Or will it only
work on a scan? 

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