We deliver over v4/v6. It generally works rather well for us. We do occasionally see someone who publishes a v6 MX and doesn't seem to properly test (there was a .gov a few weeks ago for example, since resolved in some way).
-- Alex Brotman Sr. Engineer, Anti-Abuse & Messaging Policy Comcast > -----Original Message----- > From: mailop <mailop-boun...@mailop.org> On Behalf Of James Cloos via > mailop > Sent: Thursday, June 15, 2023 7:25 PM > To: mailop@mailop.org > Subject: [EXTERNAL] [mailop] v4 vs v6 MXs > > Would any common MTAs in use have any problems with delivery to a destination > where a subset of its MXs are v4-only and another (non- > intersecting) subset are v6-only? > > I presume that any rfc-compliant MTA would do the right thing. > At least in theory. > > But would such an arrangement work in practice? > > -JimC > -- > James Cloos <cl...@jhcloos.com> OpenPGP: 0x997A9F17ED7DAEA6 > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://urldefense.com/v3/__https://list.mailop.org/listinfo/mailop__;!!CQl3mcH > X2A!FGn2QQSejR3Zx3fWAr4mzEI2iknjNxA31IoyXLe2YeA5X0OVO4ZGvoTtMf7Kns > hmVvD-mv-l8AYU0521apI$ _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
