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Email Feedback Report Type Value: not-spam
RFC 6430

Internet Engineering Task Force (IETF)                             K. Li
Request for Comments: 6430                                      B. Leiba
Category: Standards Track                            Huawei Technologies
ISSN: 2070-1721                                            November 2011

               Email Feedback Report Type Value: not-spam

Abstract

   This document defines a new Abuse Reporting Format (ARF) feedback
   report type value: "not-spam".  It can be used to report an email
   message that was mistakenly marked as spam.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc6430.

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
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   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.

Li & Leiba                   Standards Track                    [Page 1]
RFC 6430              Email Feedback Type: not-spam        November 2011

Table of Contents

   1. Introduction ....................................................2
      1.1. Discussion .................................................2
   2. Feedback Report Type: not-spam ..................................3
   3. Example .........................................................3
   4. Security Considerations .........................................5
   5. IANA Considerations .............................................6
   6. Acknowledgements ................................................6
   7. References ......................................................6
      7.1. Normative References .......................................6
      7.2. Informative References .....................................6

1.  Introduction

   In RFC 5965 [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

   In some cases, the email client receives an email message that was
   incorrectly tagged as spam, perhaps by the email system, or
   accidentally by the user.  The email client accepts the end user's
   "not-spam" report instruction, retrieves information related to the
   message, and reports this email as not-spam to the email operator.
   When the email operator receives the report, it can determine what
   action is appropriate for the particular message and user.  (The
   requirement for a not-spam report type is from the Open Mobile
   Alliance (OMA) Spam Report Requirement Document [OMA-SpamRep-RD].)

   For example, in response to a "not-spam" report, the email system can
   remove the spam tag or otherwise reclassify the message, possibly
   preventing similar email for this user from being marked as spam in
   the future.  The report can be used to adjust the training of an
   automated classifier.  After processing the report, the email

Li & Leiba                   Standards Track                    [Page 2]
RFC 6430              Email Feedback Type: not-spam        November 2011

   operator might send a notification to the email client about the
   processing result (for example, by moving the message from one
   mailbox to another, such as from "Junk" to "Inbox").

   In most cases, "not-spam" reports will probably not be taken on their

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