@TimWardCam
> my email address is controlled by me.
I do this too. But we are outliers, right? I've seen figures that suggest more than half of all email is delivered by Goggle;
https://www.jwz.org/blog/2014/05/google-has-most-of-my-email-because-it-has-all-of-yours/
... and I'm guessing most of the other half is delivered by other big players. They effectively work as a cartel to make it a big headache to run small email providers or host your own.
It would break my heart to see the fediverse go the same way.