[SoCoSA/discuss] exim TLS cert problem

Andrew argonaut at gmx.co.uk
Thu Aug 27 21:12:18 PDT 2009


Kevan Benson wrote on Thu, 27 Aug 2009 09:53:14 -0700:

> Plain SMTP over SSL is port 465

Actually...

  "Port 465 is reserved for Cisco by the IANA for the URD
  mechanism. No other applications can use this port."
(from
  http://www.ciscopress.com/articles/article.asp?p=28471&seqNum=5 )

Yes, it's common practice to use port 465 for secure SMTP, but
the port is officially assigned to Cisco. More here:
http://www.irbs.net/internet/postfix/0710/0880.html

and straight from the horse's mouth:
http://www.iana.org/assignments/port-numbers

A.



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