Send some messages without From: munging. To produce "easy" signatures, which several domains do but not all.Īuthor domains and MLMs can adopt any of these methods, possiblyĬoncurrently with one another. The method requires no conferral of trust, but needs author domains That they redistribute, which is what "classic" MLMs currently do. It works with MLMsĬonfigured to add just a footer and a subject tag to the messages Which also implies trust in the list domain at each receiver. List or a special behavior of author's domains, and a special setting Section 4, this method requires either a special setup of the mailing Method two uses the Author: header field (). Mailing list, and a setting which implies trust in the list domain at Who opted to receive non-munged messages, possibly relying on theĪuthenticated Received Chain (ARC) () produced by the MLM.ĭescribed in Section 3, this method requires a special setup of the Method one considers how MLMs can avoid From: munging for subscribers We present three methods to obtain that result. In this document, we try and restore the end-to-end nature of theįrom: email field. For other lists, where personal knowledge playsĪ role, it can become a nuisance as it hinders off-list messaging. For lists paired by web fora, for example, it Lightly, have to rewrite From: an operation known as From: munging.ĭepending on the kind of mailing list, From: munging can annoy Reason, mailing list managers (MLMs) that transform messages, however (DMARC) () hinges on the alignment of the domain in theįrom: header field with an authenticated identifier. Introductionĭomain-based Message Authentication, Reporting, and Conformance Please review these documents carefully, as they describe your rightsĪnd restrictions with respect to this document.ġ. Provisions Relating to IETF Documents ( license-info) in effect on the date of publication of this document. This document is subject to BCP 78 and the IETF Trust's Legal Internet-Draft MLM Transformations September 2022 This Internet-Draft will expire on 18 March 2023.Ĭopyright (c) 2022 IETF Trust and the persons identified as the Material or to cite them other than as "work in progress." It is inappropriate to use Internet-Drafts as reference Internet-Drafts are draft documents valid for a maximum of six monthsĪnd may be updated, replaced, or obsoleted by other documents at any Note that other groups may also distribute Internet-Drafts are working documents of the Internet Engineering
REMOVE MAILIST SIGNATURE FROM MAILMAN FULL
This Internet-Draft is submitted in full conformance with the Tries to revert MLM transformations, in order to restore the original Methods two uses the Author: header field while method three Method one considers how MLMs can avoid From: munging for specific The methods vary requirements, complexity and success rates. This document proposes three methods to get rid of munged From: Rewrite the From: header field as a workaround. Reporting, and Conformance (DMARC) led Mailing List Managers (MLM) to The widespread adoption of Domain-based Message Authentication, Mailing List Manager (MLM) Transformations draft-vesely-dmarc-mlm-transform-07
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