OpenBSD spamd

OpenBSD's spamd(8) is a SPAM deferral daemon which rejects false mail in a very efficient way.
A variety of databases exist here which can be specified in the /etc/mail/spamd.conf file, and loaded using spamd-setup(8).

• Nixspam
  The Nixspam suspicious sources list formatted for spamd.

  OpenBSD mirror location: https://www.openbsd.org/spamd/nixspam.gz