SMTP Service Extension for Indicating the Responsible Submitter of an E-Mail Message
RFC 4405, “SMTP Service Extension for Indicating the Responsible Submitter of an E-Mail Message”, is a Historic document published in April 2006 by E. Allman, H. Katz. The canonical text is published by the RFC Editor.
Abstract
This memo defines an extension to the Simple Mail Transfer Protocol (SMTP) service that allows an SMTP client to specify the responsible submitter of an e-mail message. The responsible submitter is the e-mail address of the entity most recently responsible for introducing a message into the transport stream. This extension helps receiving e-mail servers efficiently determine whether the SMTP client is authorized to transmit mail on behalf of the responsible submitter's domain. 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A specification that has been superseded or is otherwise no longer recommended for use.
The canonical text of RFC 4405 is hosted at rfc-editor.org. Available in TXT,HTML.
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