On 24/07/18 15:22, Mark Foster wrote: > Oh good. Port 465. Another Depreciated thing :-) > > https://stackoverflow.com/questions/15796530/what-is-the-difference-between-ports-465-and-587 > > There's no longer a reason to offer services on Port 465 :S > > Not really relevant to the OP problem, but I couldn't not-bite...
No fear, it was recently de-deprecated and is now considered standard again. https://tools.ietf.org/html/rfc8314 > 7.3. Submissions Port Registration > > IANA has assigned an alternate usage of TCP port 465 in addition to > the current assignment using the following template [RFC6335]: > > Service Name: submissions > Transport Protocol: TCP > Assignee: IESG <i...@ietf.org> > Contact: IETF Chair <ch...@ietf.org> > Description: Message Submission over TLS protocol > Reference: RFC 8314 > Port Number: 465 > > This is a one-time procedural exception to the rules in [RFC6335]. > This requires explicit IESG approval and does not set a precedent. > Note: Since the purpose of this alternate usage assignment is to > align with widespread existing practice and there is no known usage > of UDP port 465 for Message Submission over TLS, IANA has not > assigned an alternate usage of UDP port 465. > > Historically, port 465 was briefly registered as the "smtps" port. > This registration made no sense, as the SMTP transport MX > infrastructure has no way to specify a port, so port 25 is always > used. As a result, the registration was revoked and was subsequently > reassigned to a different service. In hindsight, the "smtps" > registration should have been renamed or reserved rather than > revoked. Unfortunately, some widely deployed mail software > interpreted "smtps" as "submissions" [RFC6409] and used that port for > email submission by default when an end user requested security > during account setup. If a new port is assigned for the submissions > service, either (a) email software will continue with unregistered > use of port 465 (leaving the port registry inaccurate relative to _______________________________________________ AusNOG mailing list AusNOG@lists.ausnog.net http://lists.ausnog.net/mailman/listinfo/ausnog