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Dangerous Labels in DNS and E-mail

Document Type Expired Internet-Draft (individual)
Expired & archived
Author Daniel Kahn Gillmor
Last updated 2023-04-16 (Latest revision 2022-10-13)
RFC stream (None)
Intended RFC status (None)
Additional resources Other Repository
Issuer Tracker
Additional Web Page
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document establishes registries that list known security- sensitive labels in the DNS and in e-mail contexts. It provides references and brief explanations about the risks associated with each known label. The registries established here offer guidance to the security-minded system administrator, who may not want to permit registration of these labels by untrusted users.


Daniel Kahn Gillmor

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)