nanog mailing list archives

Re: Why do so few mail providers support Port 587?


From: Florian Weimer <fw () deneb enyo de>
Date: Sat, 19 Feb 2005 14:16:18 +0100


* Sean Donelan:

Yet another reason for supporting port 587 on your servers for remote
authenticated mail submission from your users.  If you don't support
port 587, and use SPF, it may break when AOL or other providers re-direct
port 25.

http://www.heise.de/english/newsticker/news/56437

Has AOL notified anyone in advance?  Quite a few provider-independent
mail providers were caught by surprise.


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