Economical MAD is not the answer here. It’s a very complex subject that is difficult to solve.
I use Google Domains to create custom email addresses on the fly that syphons to my personal Gmail address.
If I subscribe to a service, say Netflix, I just put netflix@mydomain.com and it automagically exists and redirects to my Gmail.
Economical MAD is not the answer here. It’s a very complex subject that is difficult to solve.