[115407] in North American Network Operators' Group
Re: Is your ISP blocking outgoing port 25?
daemon@ATHENA.MIT.EDU (Jack Bates)
Thu Jun 18 17:39:40 2009
Date: Thu, 18 Jun 2009 16:38:45 -0500
From: Jack Bates <jbates@brightok.net>
To: Christopher Morrow <morrowc.lists@gmail.com>
In-Reply-To: <75cb24520906181401r62ebf873u4f94433b9be28147@mail.gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Christopher Morrow wrote:
> in all seriousness, most isp's (consumer provider folk) today do some
> form of blocking of port 25, if you are 'smart' enough to evade this
> sort of thing, then you can still do email/blah. 99.999% of users are:
> 1) not interested in bypassing it
> 2) not clued into what's going on
> 3) using webmail
>
I'd say 0.5% of my customer base contacts the helpdesk to setup auth and
bypass tcp/25 blocks using tcp/587. Another 2% use my webmail offsite,
and about 10% use webmail only (on my network or off).
Then there's those pesky gmail users. We should just block them. j/k :P
> Why is this debate still ongoing??
>
Because nanog is slow? Actually, I think the original poster was just
curious as these days not much is said overly much outside of the "Die
Spammer" threads in other venues.
Jack
