I'd like to run my own infrastructure, that's problematic on several grounds, and regardless not a generalisable solution.
I'm increasingly of the mind that government postal services should offer email directly. That should also come with privacy protections we're not seeing from private-sector providers. I'm not pretending that postal mail is free from government surveillance. However simply by way of the fact that it is universally used there is an exceptionally large contingency with concerns that it have strong privacy protections. Government-provision of email services would no more precluded private and individual provisions than is the case for parcel and courier delivery. What it does do is insure universal access at a defined minimum standard regardless of failings in commercial markets.
(The details on what specifically should be considered is a long one, beginning with whether or not SMTP protocols are really suited to the present age, and including questions of access to multiple email aliases, pseudonymous email, and all that jazz. I'm not going to pretend this is settled or simple.)
I'm also relying increasingly on postal rather than email. The latter is increasingly intractable.