Reclassifying Sender ID and SPF as Historic

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Hello,

In April 2006, the specifications for Sender ID and SPF (RFC 4405, RFC 4406, RFC 4407 and RFC 4408) were published as Experimental. These RFCs contain an IESG Note which warns participants relying on Sender ID that they may lose valid messages in some circumstances. The note also contains some advice for participants publishing SPF records about how to avoid the conflict between the two experiments. The note concludes with an invitation to the community to observe the success or failure of the experiments over a two year period so that a consensus can be reached.

This message is not about:

 1. Determining which approach is a success or a failure

 2. An invitation for people opposing the experiments to discuss about them

 3. Starting a letter writing campaign to perpetuate the experiments.

It is in the interest of the community to conclude these two experiments given that it's over two years and that the IESG believes that it can lead to loss of mail. As such, it is suggested that RFC 4405, RFC 4406, RFC 4407 and RFC 4408 be reclassified as Historic.

Proponents of Sender ID and SPF are encouraged to update their specifications to resolve any conflict that was observed. Obviously, it's in their best interests to reach a consensus on what changes are appropriate instead of trying to publish each document individually as any individual effort would likely face opposition from the IETF community.

Regards,
-sm

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