nanog mailing list archives

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


From: Nils Ketelsen <nils.ketelsen () kuehne-nagel com>
Date: Thu, 24 Feb 2005 16:08:42 -0500


On Tue, Feb 15, 2005 at 09:00:11PM -0500, Sean Donelan wrote:

Although RFC2476 was published in December 1998, its amazing
how few mail providers support the Message Submission protocol
for e-mail on Port 587.  Even odder, some mail providers
use other ports such as 26 or 2525, but not the RFC recommended
Port 587 for remote authenticated mail access for users.

I can not say anything about other providers, but I don't do it for a
simple reason: I think it is completely pointless. 

What can be done to encourage universities and other mail providers
with large roaming user populations to support RFC2476/Port 587?

Give a good reason. That is still the missing part.


Nils


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