nanog mailing list archives

Re: ISP port blocking practice


From: "Patrick W. Gilmore" <patrick () ianai net>
Date: Sat, 24 Oct 2009 11:21:38 -0400


On Oct 23, 2009, at 10:54 PM, Owen DeLong wrote:
On Oct 23, 2009, at 3:43 PM, Justin Shore wrote:
Dan White wrote:
On 23/10/09 17:58 -0400, James R. Cutler wrote:
Blocking the well known port 25 does not block sending of mail. Or the
message content.
It does block incoming SMTP traffic on that well known port.

Then the customer should have bought a class of service that permits servers.

Then you shouldn't be marketing what the customer bought as "Internet Access".

We disagree. But is this really the place to discuss what MARKETING people should be doing? :)

Blocking port 25 is not, IMHO, a violation of Network Neutrality. I explained why in a very long, probably boring, post. Your definition of Network neutrality may differ. Which is fine, but doesn't make mine wrong.

As for how it is marketed, well, I'm not even going to try to argue that.

--
TTFN,
patrick



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