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Re: Why do so few mail providers support Port 587?
Thor Lancelot Simon wrote:
On Tue, Feb 15, 2005 at 09:00:11PM -0500, Sean Donelan wrote:I think we have ignored/trivialized the obvious.
Port 587 gives you the ability to class your connections as either MTA<->MTA, Legacy User->MTA, MSP User ->MTA.
This is quite valuable as you now have the theoretical ability treat them differently. Whether that means different access/authentication/encryption/firewall/relay policies or whatever.
If all one does is run a full copy on that port then *THEY* have gained almost nothing in practice, aside from further un-exploited capabilities. However we all gain from ever increasing, even if it is only incremental, support of well known RFC's.
Specific MTA discussions aside, port 587 is a good thing, and the more of it the merrier.