with recent versions of spamassassin, failed pyzor checks are now being logged like this: spamd[18143]: [pyzor] check failed: internal error_ this is documented at http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4580 there are several pyzor patches which we could include to help fix this and other issues: http://antispam.imp.ch/patches/patch-pyzor-debian-mbox http://antispam.imp.ch/patches/patch-pyzor-handle_unknown_encodings http://antispam.imp.ch/patches/patch-pyzor-unknowntype a single combined patch including those 3: http://www.engelken.net/download/pyzor.patch
including this into pyzor-0.4.0-r2. thanks for the pointer to the patche and report.
