where are the ipv6 email relay testers and sasl [password] bots

guess who this person is

Where are they, it seems only ipv4 people do them.  Sure it is early days and most people are using a big email provider and maybe ipv6 if they have a more modern mobile phone.

Its rather nice ipv6 if quiet compared to ipv4.

In fact nobody seems to use ipv6 and yes we do send and receive ipv6 mail unless your nerdy or a few specific internet behemoths .