Am 18.05.2019 um 19:47 schrieb Steve Dodd via mailop:
On Sat, 18 May 2019 at 01:00, Noel Butler via mailop <[email protected] <mailto:[email protected]>> wrote:

AFAIK he.net <http://he.net>filter ingoing and outgoing port 25 *by default*:

https://ipv6.he.net/certification/faq.php

That's it. And they do it by sending RSTs from the destination address.

I verified this by trying to connect to the address John used for the test. Can't ping it, get a timeout on Port 22, but connection refused for Port 25.

Jost



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