(experimentální rfc)
Abstract:
Internet mail suffers from the fact that much unwanted mail is sent
using spoofed addresses -- "spoofed" in this case means that the
address is used without the permission of the domain owner. This
document describes a family of tests by which SMTP servers can
determine whether an e-mail address in a received message was used
with the permission of the owner of the domain contained in that
e-mail address.
Viz také:
rfc.4405 - SMTP Service Extension for Indicating the Responsible Submitter of an E-Mail Message
rfc.4407 - Purported Responsible Address in E-Mail Messages
rfc.4408 - Sender Policy Framework (SPF) for Authorizing Use of Domains in E-Mail, Version 1
