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North American Network Operators Group

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

  • From: David Lesher
  • Date: Tue Mar 01 11:16:41 2005

Speaking on Deep Background, the Press Secretary whispered:
> Okay, the main difference seems to be:
> 1. People here trust, that mailservers on port 587 will have
> better configurations than mailservers on port 25 have today. I
> do not share this positive attitude.

Well, is authenticated SMTP 587 going to be worse than open port 25?
I doubt it, but... In fact, I think most folks will do way
better. Call that blind faith in the inhabitants of Middle Earth
^H^H^H NANOG....

> 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.

So you will choose hotels, conferences, etc, by whether or not they
block 25? 

And coming soon.. airlines! 

	"That's right: aisle seat, low-sodium meal 
	 and NO port 25 blocking..."

I do well to find out if the above has access at all, esp. if dealing
through a reseller [, etc].

A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

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