Self-administered email is such a pain with blocklists (SORBS etc).
Plus, if you've changed just to avoid AI slop you'd be spending a lot of hours validating that there is no AI code in your stack - else what's the point of moving.
All sounds horrible to me. I'd rather we make our voices heard to the business leaders in email that AI code is unwelcome and hopefully one to two change course. We'll see if that happens of course..