Andy Bradford <[email protected]> wrote: > Thus said Michael Richardson on Thu, 05 Jun 2025 15:55:38 -0400: > > > ... > > > > Yes, it never took off, but I've been using this for 25+ years. > > Nice to find a fellow traveller who still knows what SMTPS on port 465 > is and actually still uses it. > > I still maintain a SMTPS submission server on port 465, however, it's > rarely used anymore. > > For Ken and those who may not have used it much, it's a fine way to > allow authenticated and authorized relaying as you get strong encryption > to protect the channel and you get authentication and authorization > because the peer certificate is verified against your own CA.
I, too, run a mail-submit-with-TLS server on port 465. And, based on the recommendation in RFC 8314, I encourage my mail clients to prefer it. < Stephen
