I rather move all important stuff out of email and back it up with more relevant tool.

To be calm that if all email is lost - it’s not a big deal.

I find the idea of backing up whole email life silly.

You don’t back up your physical post from beginning of ages, right? You rather keep only small fraction of most valuable things while dumping once in a while all temporarily important stuff.

Email is not a goal for me, just a mean to an end.