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Versions: 00 draft-ietf-marf-not-spam-feedback

marf                                                               K. Li
Internet-Draft                                                  B. Leiba
Intended status: Standards Track                     Huawei Technologies
Expires: November 14, 2011                                  May 13, 2011


              Email Feedback Report Type Value : not-spam
                   draft-li-marf-not-spam-feedback-00

Abstract

   This document defines a new Abuse Reporting Format (ARF) feedback
   report type value: "not-spam".  It can be used to indicate that a
   message that was tagged or categorized as spam (such as by an ISP) in
   fact is not spam.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on November 14, 2011.

Copyright Notice

   Copyright (c) 2011 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.




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Table of Contents

   1.    Introduction  . . . . . . . . . . . . . . . . . . . . . . . . 3
   1.1.  Discussion  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3

   2.    Feedback Report Type: Not-Spam  . . . . . . . . . . . . . . . 3

   3.    Example . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

   4.    Security Considerations . . . . . . . . . . . . . . . . . . . 6

   5.    IANA Considerations . . . . . . . . . . . . . . . . . . . . . 6

   6.    Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . 6

   7.    References  . . . . . . . . . . . . . . . . . . . . . . . . . 6
   7.1.  Normative References  . . . . . . . . . . . . . . . . . . . . 6
   7.2.  Informative References  . . . . . . . . . . . . . . . . . . . 6

         Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . 7






























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1.  Introduction

   In [RFC5965], an Abuse Reporting Format (ARF) is defined for
   reporting email abuse.  Currently two feedback report types are
   defined that are related to the spam problem, and that can be used to
   report abusive or fraudulent email messages:
   o  abuse: indicates unsolicited email or some other kind of email
      abuse.
   o  fraud: indicates some kind of fraud or phishing activity.

   This specification defines a new feedback report type: "not-spam".
   It can be used to report a message that was mistakenly marked as
   spam.

1.1.  Discussion

   The requirement to indicate a not-spam report type is from the Open
   Mobile Alliance (OMA) Spam Report Requirement Document
   [OMA-SpamRep-RD].

   In some cases, the mail client receives an email message that was
   tagged as spam, either by the mail system or accidentally by the
   user, but the end user finds out that actually it is not spam.  The
   mail client accepts the end user's report instruction and retrieves
   information related to the message, and reports this email as not-
   spam to the mail operator.  When the mail operator receives the
   report, it can take appropriate measures with the mail in the message
   store.  For example, it can remove the spam tag or change the
   category, possibly preventing future similar mail from being marked
   as spam.  The report can be used to adjust the training of an
   automated classifier.  After processing the report, the mail operator
   can send a notification to the mail client about the processing
   result.

1.2.  Terminology

   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 [RFC2119].  These
   terms take their normative values only when presented in UPPER CASE.


2.  Feedback Report Type: Not-Spam

   This document only defines a new feedback report type, "not-spam",
   extending feedback reports as specified in [RFC5965].

   In the first MIME part of the feedback report message, the end user



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   or the mail client MAY add information to indicate why the message is
   not spam -- for example, because the originator or its domain is well
   known.


3.  Example

   In the example, Joe, a pharmaceuticals sales representative, has
   received a message about discount pharmaceuticals.  Because that is a
   frequent subject of spam email, the message has been marked as spam
   -- incorrectly, in this case.  Joe has reported it as "not-spam", and
   this is an example of the report.







































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      From: <abusedesk@example.com>
      Date: Thu, 8 Mar 2005 17:40:36 EDT
      Subject: FW: Discount on pharmaceuticals
      To: <abuse@example.net>
      MIME-Version: 1.0
      Content-Type: multipart/report; report-type=feedback-report;
           boundary="part1_13d.2e68ed54_boundary"

      --part1_13d.2e68ed54_boundary
      Content-Type: text/plain; charset="US-ASCII"
      Content-Transfer-Encoding: 7bit

      This is an email abuse report for an email message received
      from IP 192.0.2.1 on Thu, 8 Mar 2005 14:00:00 EDT.
      For more information about this format please see
      http://www.mipassoc.org/arf/.

      --part1_13d.2e68ed54_boundary
      Content-Type: message/feedback-report

      Feedback-Type: not-spam
      User-Agent: SomeGenerator/1.0
      Version: 1

      --part1_13d.2e68ed54_boundary
      Content-Type: message/rfc822
      Content-Disposition: inline

      Received: from mailserver.example.net
           (mailserver.example.net [192.0.2.1])
           by example.com with ESMTP id M63d4137594e46;
           Thu, 08 Mar 2005 14:00:00 -0400
      From: <someone@example.net>
      To: <Undisclosed Recipients>
      Subject: Discount on pharmaceuticals
      MIME-Version: 1.0
      Content-type: text/plain
      Message-ID: 8787KJKJ3K4J3K4J3K4J3.mail@example.net
      Date: Thu, 02 Sep 2004 12:31:03 -0500

      Hi, Joe.  I got a lead on a source for discounts on
      pharmaceuticals, and I thought you might be interested.
      [...etc...]
      --part1_13d.2e68ed54_boundary--

              Example 1: Not-spam report





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4.  Security Considerations

   All of the Security Considerations from [RFC5965] are inherited here.

   Not-spam reports could possibly be used in an attack on a filtering
   system, reporting true spam as "not-spam".  Even in absence of
   malice, some not-spam reports will only apply to the user sending the
   report.  Operators need to be careful in trusting such reports,
   beyond their applicability to the specific user in question.


5.  IANA Considerations

   Registration is requested for the newly defined feedback type name:
   "not-spam", according to the instructions in section 7.3 of the base
   specification [RFC5965].

   Please add the following to the "Feedback Report Type Values"
   registry:
   Feedback Type Name:  not-spam
   Description:  Indicates that a message is not spam.  This may be used
       to correct a message that was incorrectly tagged or categorized
       as spam.
   Published in:  this document
   Status:  current


6.  Acknowledgements

   The authors would like thank Murray S. Kucherawy and Bert
   Greevenbosch for their discussion and review.


7.  References

7.1.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC5965]  Shafranovich, Y., Levine, J., and M. Kucherawy, "An
              Extensible Format for Email Feedback Reports", RFC 5965,
              August 2010.

7.2.  Informative References

   [OMA-SpamRep-RD]
              Open Mobile Alliance, "Mobile Spam Reporting



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              Requirements", OMA-RD-SpamRep-V1_0 20101123-C,
              November 2010.


Authors' Addresses

   Kepeng Li
   Huawei Technologies
   Huawei Base, Bantian, Longgang District
   Shenzhen, Guangdong  518129
   P. R. China

   Phone: +86-755-28974289
   Email: likepeng@huawei.com


   Barry Leiba
   Huawei Technologies

   Phone: +1 646 827 0648
   Email: barryleiba@computer.org
   URI:   http://internetmessagingtechnology.org/





























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