> On Apr 1, 2017, at 4:19 PM, Rick Zeman <rze...@gmail.com> wrote: > > Comcast, surprisingly, is way ahead of the residential game:
I am not surprised. In addition to having IPv6 they also have
DNSSEC deployed, and have published working DANE TLSA records
for their MX hosts. Bottom line, SMTP at Comcast is actively
maintained to modern standards.
--
Viktor.
