[PythonDeveloper]

I would recommend you run your own email server. DigitalOcean offers a vm with mailinabox installed ( https://www.digitalocean.com/community/tutorials/how-to-run-... ) and that gives you complete control over your organization. At that point you control everything.

Also see https://mailinabox.email/ .

If you want to ensure delivery, route your email through SMTP.com's SMTP servers.

Gmail has an IMAP interface which you can use to import/export your email boxes and folders.

(I have no ties to emailinabox, fwiw).