Since about dec 18 2005 i've been getting this message in my log files:
Dec 18 11:46:05 dns2 spamd[13368]: pyzor: check failed: internal error

Date could not be perfectly accurate i don't update my mailserver so often :-)

So now i've downloaded the src.rpm and rpmbuild --rebuild it, and everything is
working perfectly again without complaints.

I think the fc-extras-development version (which is still tagged fc4 btw
(pyzor-0.4.0-9.fc4)) could use a rebuilt to make it functional again