[129355] in North American Network Operators' Group
Re: ISP port blocking practice
daemon@ATHENA.MIT.EDU (JC Dill)
Fri Sep 3 10:38:52 2010
Date: Fri, 03 Sep 2010 07:38:31 -0700
From: JC Dill <jcdill.lists@gmail.com>
CC: NANOG list <nanog@nanog.org>
In-Reply-To: <782DAE51-C0F1-453B-8FEA-96754B6347E2@ianai.net>
Reply-To: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Patrick W. Gilmore wrote:
> On Sep 3, 2010, at 8:22 AM, Owen DeLong wrote:
>
>> On Sep 2, 2010, at 10:41 PM, Franck Martin wrote:
>>
>>
>>> Have you heard of the submission port?
>>>
>>>
>> Yes... Many of the idiots that block outbound 25 also block outbound 587 and sometimes 465.
>>
>
> Could you point to more than one instance? I've not yet found one. And I think I spend at least as much time in hotels & 3G & airports & etc. as you anyone else here.
>
>
FWIW, I had it happen at a local library. Used their webform to send a
message mentioning that blocking 25 was good, but blocking 587 and 465
was bad. It took several days but they did fix it.
jc
