I have to ask this. Is there a service where I could bring my own FQN like Notgoogle.com and then have them handle emails for me? But with a twist… I want notgoogle.com to send and receive emails via that outside entity, but I want to send the emails from a self hosted server that maybe has mailcow or similar and I want that same server to receive the emails from the outside company. Ideally the outside company is basically just a relay from my IP to the outside world and vise versa. The outside company would basically hold the emails until my server checked and downloaded them. any advice on this. Hopefully with a useful step by step guide from somewhere in the webs?
For backing up your email from gmail or any other provider, check out MailStore Home edition: https://www.mailstore.com/en/products/mailstore-home/ It will grab everything in the account and store it locally, and then allow you to push it back onto any other imap service when necessary. Great for migrating your email, and keeping a just-in-case backup.