Once you elect to communicate via this government blessed email, you are basically forced to check that email everyday notwithstanding your ability (e.g. when your computer/internet breaks) as the communication is considered delivered once it hits your (e-)mail box.
For example if you are summoned to court (and it is a felony to not show up), I'd think I'd prefer snail mail for those communications, as I'd trust my "tech stack" of a physical mail box on the receiving side a bit more than some government blessed email provider.