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IPR Details
Andrew Sullivan's Statement about IPR related to RFC 4405, RFC 4406, RFC 4407, and RFC 4408 belonging to Microsoft Corporation

Submitted: February 28, 2012 under the rules in RFC 3979 as updated by RFC 4879.

Note: Updates to IPR disclosures must only be made by authorized representatives of the original submitters. Updates will automatically be forwarded to the current Patent Holder's Contact and to the Submitter of the original IPR disclosure.

I. Possible Patent Holder/Applicant ("Patent Holder")

Holder legal name Microsoft Corporation

II. Contact Information for the IETF Participant Whose Personal Belief Triggered this Disclosure

Name Andrew Sullivan
Other info

T: +1 519 694 5149

III. IETF Document or Other Contribution to Which this IPR Disclosure Relates

RFC4405 ("SMTP Service Extension for Indicating the Responsible Submitter of an E-Mail Message")
RFC4406 ("Sender ID: Authenticating E-Mail")
RFC4407 ("Purported Responsible Address in E-Mail Messages")
RFC4408 ("Sender Policy Framework (SPF) for Authorizing Use of Domains in E-Mail, Version 1")

IV. Disclosure of Patent Information
i.e., patents or patent applications required to be disclosed by RFC 3979 as updated by RFC 4879

A. For granted patents or published pending patent applications, please provide the following information:

Patent, Serial, Publication, Registration, or Application/File number(s)

No idea. See and
Date: 2006
Country: US

Notes: See and

Note that the form insisted I fill in the above; I have no idea whether any of it is right. Please see the links for the information I have.

I think Microsoft registered their IPR against MARID forms of the I-Ds, and the ones that were published were not those.

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending No

V. Contact Information of Submitter of this Form

Submitter name
Submitter email

Only those sections of the relevant entry form where the submitter provided information are displayed above.