RFC 4407 · HISTORIC · 2006
WED · 29 JUL 2026
Purported Responsible Address in E-Mail Messages
Overview
RFC 4407, “Purported Responsible Address in E-Mail Messages”, is a Historic document published in April 2006 by J. Lyon. The canonical text is published by the RFC Editor.
Abstract
This document defines an algorithm by which, given an e-mail message, one can extract the identity of the party that appears to have most proximately caused that message to be delivered. This identity is called the Purported Responsible Address (PRA).This memo defines an Experimental Protocol for the Internet community.
What “Historic” means
A specification that has been superseded or is otherwise no longer recommended for use.
Read this RFC
The canonical text of RFC 4407 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 2006
- RFC 4406 Sender ID: Authenticating E-Mail
- RFC 4408 Sender Policy Framework for Authorizing Use of Domains in E-Mail, Version 1
- RFC 4405 SMTP Service Extension for Indicating the Responsible Submitter of an E-Mail Message
- RFC 4409 Message Submission for Mail
- RFC 4404 Definitions of Managed Objects for Fibre Channel Over TCP/IP
- RFC 4410 Selectively Reliable Multicast Protocol
- RFC 4403 Lightweight Directory Access Protocol Schema for Universal Description, Discovery, and Integration version 3
- RFC 4411 Extending the Session Initiation Protocol Reason Header for Preemption Events