gs.dmarc 2.1.5

Look up and report on the DMARC status of a domain.

Author:

Michael JasonSmith

Contact:

Michael JasonSmith <[e-mail]>

Date:

2015-06-25

Organization:

GroupServer.org

Copyright:

This document is licensed under a Creative Commons Attribution-Share Alike 4.0 International License by OnlineGroups.net.

Introduction

This product allows systems look up and report on the DMARC (RFC 7489: Domain-based Message Authentication, Reporting and Conformance) status of a domain. DMARC allows the owner of a domain to publish a key that is used to verify if an email message actually originated from the domain, and to publish what to do if the verification fails. It is an extension of DKIM (RFC 6376: DomainKeys Identified Mail) and SPF (RFC 4408: Sender Policy Framework).

Specifically this product supplies gs.dmarc.ReceiverPolicy for enumerating [1] the different DMARC policies, and the receiver_policy function for querying the policy for a given domain.

Resources

• Documentation: http://gsdmarc.readthedocs.org/

• Code repository: https://github.com/groupserver/gs.dmarc

• Questions and comments to http://groupserver.org/groups/development

• Report bugs at https://redmine.iopen.net/projects/groupserver

[1]

The enum34 package is used to provide Enum support for releases of Python prior to 3.4.

Changelog

2.1.5 (2015-09-01)

• Catching dns.resolver.NoNameserver exceptions, thanks to Alexy Mikhailichenko

2.1.4 (2015-06-25)

• Fixing a spelling mistake in the README, thanks to Stefano Brentegani

• Updating the documentation, as DMARC is now RFC 7489

2.1.3 (2014-10-20)

• Handling domains with invalid DMARC policies, closing Bug 4135

2.1.2 (2014-09-26)

• Switching to GitHub as the primary code repository.

2.1.1 (2014-07-09)

• Coping when the host-name passed to lookup_receiver_policy for hosts that start with _dmarc already

• Rejecting all answers that do not start with v=DMARC1, as per Section 7.1 (number 5) of the draft DMARC specification

2.1.0 (2014-05-07)

• Adding gs.dmarc.receiver_policy, which looks up the organisational domain

• Updating the Sphinx documentation

2.0.0 (2014-04-29)

• Adding gs.dmarc.ReceiverPolicy.noDmarc, and returning it from gs.dmarc.lookup_receiver_policy

• Adding Sphinx documentation

1.0.0 (2014-04-24)

Initial release.