Does anyone remember why we removed EXPERIMENTAL_REQUIRETLS
commit 9883af7240d3c25b7a8a859c9e8482caacd5f1aa
Author: Jeremy Harris <jgh146...@wizmail.org>
Date: Fri Mar 15 22:01:07 2019 +0000
Retire EXPERIMENTAL_REQUIRETLS
?
It seems that we implemented a draft version of what became RFC8689,
which would be useful is we (I) implement "SMTP TLS Reporting"
from RFC8460.
Whilst "Require TLS" is not necessary for SMTP TLS Reporting,
the ability to turn *off* TLS could make sending reports of TLS failures
more reliable.
https://author-tools.ietf.org/iddiff?url1=draft-ietf-uta-smtp-require-tls-03&url2=rfc8689&difftype
=--hwdiff
Unless Jeremy removed REQUIRETLS for a stronger reason than "not
currently useful", I intend to investigate resurrecting it as an
EXPERIMENTAL feature.
I understand that Postfix 3.10 (expected next month) will use
TLS_Required: no
when sending TLS reports, but obviously there are
dangers in allowing emails to disable TLS.
Thanks,
--
Andrew C. Aitchison Kendal, UK
and...@aitchison.me.uk
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