A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : SMTP Require TLS Option
Author : Jim Fenton
Filename : draft-fenton-smtp-require-tls-01.txt
Pages : 10
Date : 2016-02-13
Abstract:
The SMTP STARTTLS option, used in negotiating transport-level
encryption of SMTP connections, is not as useful from a security
standpoint as it might be because of its opportunistic nature;
message delivery is prioritized over security. This document
describes a complementary SMTP service extension, REQUIRETLS. If the
REQUIRETLS option is used when sending a message, it causes message
delivery to fail if a TLS connection with the required security
characteristics cannot be completed with the next hop MTA or if that
MTA does not also advertise that it supports REQUIRETLS. Message
originators may therefore expect transport security to be used for
messages sent with this option.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-fenton-smtp-require-tls/
There's also a htmlized version available at:
https://tools.ietf.org/html/draft-fenton-smtp-require-tls-01
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-fenton-smtp-require-tls-01
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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