nanog mailing list archives

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


From: Nils Ketelsen <nils.ketelsen () kuehne-nagel com>
Date: Tue, 1 Mar 2005 09:36:35 -0500


On Tue, Mar 01, 2005 at 03:25:39PM +0100, Frank Louwers wrote:

On Tue, Mar 01, 2005 at 09:18:19AM -0500, Nils Ketelsen wrote:

2. Port 587 Mailservers only make sense, when other Providers block
port 25. My point is: If my ISP blocks any outgoing port, he is no longer
an ISP I will buy service from. Therefore I do not need a 587-Mailserver,
as I do not use any ISP with Port 25-Blocking for connecting my sites or
users.

Here in Belgium, the two biggest end-user (broadband) ISPs block tcp/25.
Are you going to tell your users: "sorry, you should have taken another
another access isp, take one of the very few ones left that don't
block"?

I am in the lucky situation, where I decide, which providers my users get.

Nils


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