http://sqlgrey.sourceforge.net/
SQLgrey is a Postfix grey-listing policy service with auto-white-listing written in Perl with SQL database as storage backend. Greylisting stops 50 to 90% of junk mails (spam and virus) before they reach your Postfix server (saves BW, user time and CPU time).
Version: 1.8.0
General Commands | |
sqlgrey | Postfix Greylisting Policy Server |