Ha! What's next!? LDAPS on 636 standardised? ;^) On Tue, Apr 10, 2018 at 03:54:50PM BST, Andrew Swartz wrote: > > FYI: > > A new (Jan 2018) RFC is now re-adopting port 465 for mail submission: > > https://tools.ietf.org/html/rfc8314 > > It discusses the rationale, and it is the first RFC that I've found to > be an interesting read. It advocates "Implicit TLS" on port 465 over > either cleartext OR STARTTLS. > > > > > > On 4/10/2018 1:43 AM, Craig Skinner wrote: > > Hi Nick, > > > > Port 587 is the proper MUA submission port, not 465. > > > > https://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol > > > > https://tools.ietf.org/html/rfc6409 > > > > http://blog.mailgun.com/25-465-587-what-port-should-i-use/ > > > > > > Port 465 is not RFC compliant. > > > > Perhaps Apple Mail expects the RFC port 587 to be operative? > > > > > > Cheers, > > >
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