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Sender Policy Framework
Project Overview
About SPFWelcome to the Sender Policy Framework project!Read an introduction to what SPF is, or about how SPF fits into the bigger picture of e-mail authentication. Further Reading
Contacting UsFor questions not answered by the website or the forums, or for media inquiries, please contact us directly. Latest NewsRecent changes to this site | News | Press releases IETF MARF Working Group Evaluating SPF Related Extensions (2011-06-29)A new set of Internet Drafts that extend the RFC 5965 Abuse Report Format (ARF) to better report SPF failures is being considered by the MARF working group of the IETF. More... US Senate Adopts SPF to Rebut Future Hoaxes (2010-07-08)A new e-mail validation system in the Senate will verify that all e-mails sent from Senate.gov addresses originate from legitimate â not "cloaked" â servers, the sergeant at arms announced Wednesday. More... Australian Department of Defense Recommends SPF (2009-09-30)In their new version of the Australian Government Information Security Manual, the Defence Signals Directorate has recommended use of SPF in conjunction with other email related security technologies such as TLS and DKIM. More... MAAWG published revised Sender Best Communication Practices 2.0 (2008-06-02)The Messaging Anti-Abuse Working Group stated in their latest BCP: "At the very least, senders should incorporate SPF records for their mailing domains". More... Deploying SPFPublishing SPF RecordsSPF Record Syntax – The SPF record syntax in detail. Tools – SPF record testing tools. Common mistakes – Mistakes to avoid when publishing SPF records. Checking SPFImplementations – Mail servers and clients that support SPF or can be extended to do so. SPF libraries for various programming languages. Specifications – The SPF technical reference (RFC 4408) and its predecessors. Please update your implementations! Test Suite – A test suite to help verify that an SPF implementation conforms to RFC 4408. Community & HelpThe Community section of the website can be freely edited by everybody. It has a place where you can share your story and read other people's stories. Support – Where to get support for deploying SPF. Forums – The project's mailing lists and IRC channel for technical, scientific, and political discussions about SPF and e-mail authentication. Meetups – Meet members of the SPF community in person. The SPF Council
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