RFC 8460

SMTP TLS Reporting, September 2018

Canonical URL:
https://www.rfc-editor.org/rfc/rfc8460.txt
File formats:
Plain TextPDF
Status:
PROPOSED STANDARD
Authors:
D. Margolis
A. Brotman
B. Ramakrishnan
J. Jones
M. Risher
Stream:
IETF
Source:
uta (art)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC8460

Discuss this RFC: Send questions or comments to uta@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

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.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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