On Sat, Mar 25, 2017 at 2:48 PM, Paul C <contac...@afcommerce.com> wrote: > I wish the world would use ipv6 enough for this to be worth doing, but > it's not going to have much benefit to you as there's almost no one > using it for smtp, from the last time I checked which was a few months > ago, google uses it perfectly, verizon too (maybe a few more cable > domains), yahoo looked like they were trying lol, website and some > services were v6 this year but smtp was not when I checked, hotmail > doesn't use it anywhere from what i can see, aol never will and almost > no self hosted mail server will have it. My guess is (unless gmail is > where most mail goes) that you might see a few percent like 1-5% of > mail ever use it. Not a bad research project or knowing v6, or if you > have other reasons, but actual sending out is just not happening any > time soon.
Comcast, surprisingly, is way ahead of the residential game: Apr 1 16:17:12 miniserv postfix/smtp[79694]: Untrusted TLS connection established to smtp.comcast.net[2001:558:fe21:2a::5]:587: TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits) Apr 1 16:17:12 miniserv postfix/smtp[79694]: 252483CACE40: to=<x...@example.com>, relay=smtp.comcast.net[2001:558:fe21:2a::5]:587, delay=1.6, delays=0/0/1.3/0.25, dsn=2.0.0, status=sent (250 2.0.0 uPSRcVCa8qoNEuPSSchbjZ mail accepted for delivery) Apr 1 16:17:12 miniserv postfix/qmgr[62620]: 252483CACE40: removed
