I have my own domain, and have created multiple email addresses within that domain to manage different subjects.
Most of my shopping activites are registered using shopping@domain.net.
I have an ebay@domain.net and a finance@domain.net etc
Currently it appears Gener8 can’t connect to these, which are all registered on my device using the typeapp email app, which gives me a unified email experience.
Can I suggest you need to think more generically, and instead of working on 1 email provider at a time, go for a generic IMAP solution to connect multiple mallboxes.