This is python module for RFC 5451 Authentication-Results Headers
generation and parsing.
It also supports Authentication Results extensions:

RFC 5617 DKIM/ADSP
RFC 6008 DKIM signature identification (header.b)
RFC 6212 Vouch By Reference (VBR)
draft-kucherawy-dmarc-base-00 DMARC

WWW: https://launchpad.net/authentication-results-python/