On Fri, Jan 11, 2019 at 6:14 PM Viruthagiri Thirumavalavan <giri@dombox.org> wrote:
While we're at it, let's deprecate IPv4 now that IPv6 is fully deployed
Come on Mr. Herrin.
Hi Viruthagiri, If you don't want to face the hyperbole then don't stick your head in the sand. Unless you grossly underestimate the cost of operations change, you propose to make the spam problem worse for some nontrivial period of time. In exchange, you offer an explanation for how a new port will succeed where starttls fails that frankly doesn't hold water. Any scenario where starttls is disrupted is at least as vulnerable to a new tcp port being blocked. Your other idea of signaling via DNS that a man in the middle is present if the target SMTP server fails to support encryption could have merit. I think the specific mechanism (overloading the host name) is unwise but I'd be interested to see the concept developed further. Regards, Bill Herrin -- William Herrin ................ herrin@dirtside.com bill@herrin.us Dirtside Systems ......... Web: <http://www.dirtside.com/>