[78280] in North American Network Operators' Group
Re: Why do so few mail providers support Port 587?
daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Sat Feb 26 18:12:36 2005
Date: Sun, 27 Feb 2005 00:12:08 +0100 (CET)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: nanog@merit.edu
In-Reply-To: <1109458679.5939.21.camel@blue>
Errors-To: owner-nanog@merit.edu
On Sat, 26 Feb 2005, Jim Popovitch wrote:
> I am against port blocking as much as the next guy, I just see port 587
> as a disaster waiting to happen. ISP provided email credentials are
> universally transmitted in plain text. If an (insert any ISP here)
> employee can be arrested for selling email addresses to spammers, what
> keeps them from collecting and selling 587 credentials?
If you limit port 587 sending to let's say 1000 email per day you probably
cover 99.9% of all normal users, and you're very likely to catch the
spammers abusing an account.
--
Mikael Abrahamsson email: swmike@swm.pp.se
