I'm interested in this idea. How could something like this exist and be structurally independent from the USG to avoid all of the good points in the comments below this post? And while I think they are good and obvious concerns, they don't exclude future thought on the subject.

But what would this take? If there were municipality-owned servers that allowed for basic email how could abuse be prevented? Make it an open source project with public inspection allowed to prevent abusive manipulation of data? E2E throughout the system? What would this take? Someone has to have thought about it before.