Requirements:
- free
- will not delete my account due to inactivity
- privacy focused (doesn’t have to be crazy private, just decent)
- doesn’t require my phone number
- doesn’t require an invitation (like riseup mail)
Additionally it would be cool if it allowed me to have few email addresses in 1 account (skiff lets you have 4 addresses you can send emails from, but they are shutting down their service).
Sounds like mail.yandex.com should work for you. It’s the Russian copycat of gmail, basically. But they allow anonymous signup with a “don’t have” option for phone numbers, and they have next to no trackers on the website. That ones they have are easily blocked.
I’d be wary of yandex
https://www.cvedetails.com/vulnerability-list/vendor_id-6851/Yandex.html