[KingMachiavelli]

That sounds more like mostly a technical problem. You could simply configure forwarding from your gov. email account to your personal one. You could create filters to only care about certain domains to prevent spam.

It's still a lot easier to check email than walk to a mailbox daily. But the best solution is probably to default to both email & mail such that the email can be send when the letter is sent but neither would be considered a delivered message until the letter itself was delivered.