wbl is a really simple tool that can be used in a .qmail file for managing
a white/black list of email addresses.  It only does one thing--it
checks for entries in ~/.wbl that it uses as a regex against the From:
field of an incoming email.  If it matches a line with a +, it forwards
the email to the white list, if it matches a line with a - it forwards
the email to the blacklist.

Questions, feedback, comments may be sent to the author.

Author:	Caskey Dickson <caskey@technocage.com>
WWW:	http://www.technocage.com/~caskey/wbl/