How about we move on from archiac e-mail protocols? About time if you ask me..
Sadly “move on” today means moving to a single vendor’s walled garden. We don’t really have truly federated protocols anymore. We do have some contenders but none that my mother and barber and government use.
Yep, I'm all abroad the JMAP train, but if you need the things to be done than the IMAP is the only one you can rely to.