I am not sure they could move the needle. Isn't it really just convincing 1 or 2 major mail providers (or really just Gmail)? On 7/5/24, 03:35, "Eliot Lear" <lear@xxxxxxx <mailto:lear@xxxxxxx>> wrote: Can I suggest one way forward would be for the IETF to liaise a nastygram to M3AAWG and ask for their help in getting their members to properly support IPv6? Eliot