I had to remove Qmail Scanner during the little blip it had when ClamAV wasn't working. I'm only just getting round to putting it back on now as spam has gone through the roof without it.
Running
yum install qmail-scanner
Gives no errors, qmail-scanner is running and everything seems hunky dory, at first. However, no mail can be sent (Outlook will timeout trying to send) and no mail comes in. Removing qmail-scanner, everything back to normal, previously sent messages trickle in.
I'm running this on Plesk 8.0 box, Fedora Core 4 and I'm a little lost where to start as no errors are forthcoming and I'd love to get qmail-scanner back up and running

I'm stopping Spam Assassin and Qmail (though Plesk GUI) before attempting anything and as said, on the surface it installs cleanly. Can anyone help shed any light or suggestions on where to look?