ISP port blocking practice

Patrick W. Gilmore patrick at
Fri Sep 3 13:02:21 UTC 2010

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.


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