None of that will stop snooping- it has to leave the sending computer and go through the .net before it get to the destination in Switz or where ever even to Your “private” server.
Unless You don’t hook to the .net and just send E-mail back and forth to Yourself in the house.
You seem to assume that any data leaving your computer can be instantly and unequivocally cracked. That’s not necessarily the case. I don’t know with complete certainty what the feds can crack, and neither do you. All we can do is try. It starts with using peer-reviewed, open source software.
I don’t like the idea of Dear Leader having the keys to my inbox. Maybe you feel differently.