Since 2004, the KAM.cf Apache SpamAssassin ruleset has been provided for free to help battle spammers. Today, it is incorporated into numerous commercial platforms and protects hundreds of millions of mailboxes daily.
As of today, KAM.cf has been donated and moved over to The McGrail Foundation to allow it to continue being maintained.
It will continue being ASLv2 licensed but we are soliciting donations to help fund the development.
Sponsors gifting $5,000USD or greater per year will be thanked in this file and on our website.