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).
Suggested to OP and others that self-hosting email is easy and reliable is a bad idea in my opinion.
Instead I suggest the OP to let go of the “free” requirement. There are at least three email providers that provide email for 1 Euro a month including a few email aliases. Another option is to find a web hosting company that also provides email with web hosting. For example Gandi used to do that though I read they made some changes with their hosting options.
I could not agree more. Self hosting is fairly easy for pretty much any need, once you get the hang of it. But self hosting email servers is inherently hard and requires too much maintenance. I tried, did, and then dropped. It’s a real pain in the ass.