Hi Jack,
Email is corrupt.  You don't own the domain name so governments can take it from you.  There's a couple of free ones, such as Protonmail and Tutanota, but they can see all activity and can report on it.  The best choice is to host it on a VPS yourself with FOSS software.  If you're interested, we do setups for you under $100.
https://simplifiedprivacy.com/email/