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RFC 8460
Title: SMTP TLS Reporting
Author: D. Margolis,
A. Brotman,
B. Ramakrishnan,
J. Jones,
M. Risher
Status: Standards Track
Stream: IETF
Date: September 2018
Mailbox: dmargolis@google.com,
alex_brotman@comcast.com,
prbinu@yahoo.com,
janet.jones@microsoft.com,
risher@google.com
Pages: 34
Characters: 67126
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-uta-smtp-tlsrpt-23.txt
URL: https://www.rfc-editor.org/info/rfc8460
DOI: 10.17487/RFC8460
A number of protocols exist for establishing encrypted channels
between SMTP Mail Transfer Agents (MTAs), including STARTTLS, DNS-
Based Authentication of Named Entities (DANE) TLSA, and MTA Strict
Transport Security (MTA-STS). These protocols can fail due to
misconfiguration or active attack, leading to undelivered messages or
delivery over unencrypted or unauthenticated channels. This document
describes a reporting mechanism and format by which sending systems
can share statistics and specific information about potential
failures with recipient domains. Recipient domains can then use this
information to both detect potential attacks and diagnose
unintentional misconfigurations.
This document is a product of the Using TLS in Applications Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
memo is unlimited.
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