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[ietf-dkim] SSP Policy NOMAIL

2007-06-29 11:59:31
As promised earlier, a personal internet draft to declare a NOMAIL policy. It 
is four pages as expected.

NB: This is not a working group submission as NOMAIL is out of scope. The draft 
does however demonstrate a number of points that need to be considered in the 
SSP draft.

In particular the IANA requirements should specify that there be a tag registry 
for SSP policy tags.
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Internet Engineering Task ForceP. Hallam-Baker
Internet-DraftVeriSign Inc
Intended status: InformationalJune 29, 2007
Expires: December 31, 2007 


NOMAIL: DKIM Policy Specification for No MAIL
draft-hallambaker-nomail-00

Status of this Memo

By submitting this Internet-Draft, each author represents that any applicable patent or other IPR claims of which he or she is aware have been or will be disclosed, and any of which he or she becomes aware will be disclosed, in accordance with Section 6 of BCP 79.

Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts.

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This Internet-Draft will expire on December 31, 2007.

Copyright Notice

Copyright © The IETF Trust (2007).

Abstract

A DKIM Policy statement is defined for the policy 'this zone never sends mail'.



Table of Contents

1.  Introduction
    1.1.  Requirements Language
2.  NoMail Policy
3.  Acknowledgements
4.  IANA Considerations
5.  Security Considerations
6.  Normative References
§  Author's Address
§  Intellectual Property and Copyright Statements




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1.  Introduction



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1.1.  Requirements Language

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 (Bradner, S., “Key words for use in RFCs to Indicate Requirement Levels,” March 1997.) [RFC2119].



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2.  NoMail Policy

The NOMAIL policy is declared in an SSP record using the tag "NOMAIL".

No parameters are specified for the NOMAIL policy.

If specified the NOMAIL policy states that no mail is sent from the domain to which it is attached. All mail that purports to have been sent by that domain MUST be considered suspicious.



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3.  Acknowledgements

The ideas in this document arose from extensive discussions with the DKIM working group, in particular Hector Santos and others.



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4.  IANA Considerations

This document requests allocation of a DKIM SSP tag 'NOMAIL'



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5.  Security Considerations

The NOMAIL policy MAY be employed to perform a denial of service attack.



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6. Normative References

[RFC2119] Bradner, S., “Key words for use in RFCs to Indicate Requirement Levels,” BCP 14, RFC 2119, March 1997 (TXT, HTML, XML).


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Author's Address

  Phillip Hallam-Baker
  VeriSign Inc
Email:  pbaker(_at_)verisign(_dot_)com


 TOC 

Full Copyright Statement

Intellectual Property

Acknowledgment

Attachment: draft-hallambaker-nomail-00.txt
Description: draft-hallambaker-nomail-00.txt

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