slackbuilds_ponce/libraries/python-pyspf
..
python-pyspf.info
python-pyspf.SlackBuild
README
slack-desc

Pyspf is a Python implementation of the SPF (Sender Policy Framework)
specification. Pyspf can be used with any milter script for Sendmail,
Postfix or another MTA.

This requires python-pydns.