Cannot open bayes databases /var/amavisd/.spamassassin/bayes_* R/O: tie failed: Inappropriate file type or format

[Chris Weiss]

I'm using SA in the environment described by Scott Vintinner at 
http://www.flakshack.com/anti-spam/ (Fairly-Secure Anti-SPAM Gateway 
Using OpenBSD, Postfix, Amavisd-new, SpamAssassin, Razor and DCC). 
Things had been running smoothly until I recent upgraded from v2.6 to 
3.0. The upgrade went well, except now I'm getting the following error:

Cannot open bayes databases /var/amavisd/.spamassassin/bayes_* R/O: tie 
failed: Inappropriate file type or format

I've tried completely deleting and re-creating the bayes databases 
(using sa-learn clear followed by sa-learn on my various mailboxes), but 
am still getting the errors. I also made sure I'd installed DB_file (I'd 
read somewhere it was needed). Any idea where to look for the solution 
to this problem?

I'm also getting the following error regarding URIBL, but I'm fairly 
sure I dont have it set up correctly...

Failed to run URIBL_PH_SURBL SpamAssassin test, skipping:
       (Can't locate object method "check_uridnsbl" via package 
"Mail::SpamAssassin::PerMsgStatus" at 
/usr/local/libdata/perl5/site_perl/Mail/SpamAssassin/PerMsgStatus.pm 
line 2296, <GEN10> line 377.
)

I'd greatly appreciate any constructive help on these issues...