[Mimedefang] Using a db for subject lines to block

[Cormack, Ken]

List,

I didn't see any mention of anyone trying this in the archives (darn), so I
thought I'd post.

Does anyone on the list use anything in sub filter_begin, to lookup $Subject
in a database?  I currently use a sendmail ruleset that reads in an ascii
file at sendmail startup (or at "kill -HUP" of the sendmail PID), to load a
list of subject-lines that I block on.  However, as time has passed that
list of subjects has grown and I'd like to see the subject lines migrated to
a db that with proper locking, can be updated on the fly.  I'd be open to
suggestions.

Thanks in advance,

Ken