---
name: "spfmilter.py"
section: "1"
platform: "linux"
package: "spf-milter-python"
version: "0.9-2"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/spfmilter"
---

# spfmilter.py(1)

pure-Python SPF milter

Part of [spfmilter(1)](/spfmilter/1.md).

## NAME

spfmilter - pure-Python SPF milter

## VERSION

0\.8.9

## DESCRIPTION

This is a simple milter for SPF checking written in Python.

SPF does email sender validation.  For more information about SPF, please see http://www.openspf.org/.  SPF is defined in RFC 4408.  This spfmilter is the first milter to support all final RFC 4408 requirements.

## USAGE

To use this with sendmail, add the following to sendmail.cf:

O InputMailFilters=%s X%s,        S=local:%s

See the sendmail README for libmilter.

## SEE ALSO

RFC 4408, \<http://www.openspf.org\>

## AUTHORS

This version of **spfmilter** was written by Stuart Gathman \<stuart@bmsi.com\>.

This man-page was created by Scott Kitterman \<scott@kitterman.com\>.