* The admin-user.
* The daily/real-user.
In my case I have my real account "steve@steve..", and "admin@steve" which is the gsuite administrator. I only login to make changes to the domain setup, never to send/receive email.
It's annoying to have to pay for that second user, but I feel happier with the privilege separation in place.
Edit: nevermind. I see you own the .net tld. I've definitely used that to order pizza too. Sorry about that.
Although very occasionally a service will check for MX records, but that is incredibly uncommon. My go-to email for public WiFi is fuckoff@exmaple.com and have only been denied once (<1%)
A fair number of places will deny that, but I like to think it sends a message. I'm not sure how many, if any, domains still have a working webmaster@ address though.
(I moved from UK to Finland, so I checked the .fi version on a whim. Luckily it was due to expire a few months after I checked, so I setup a script to register it the moment it became available.)
https://support.google.com/cloudidentity/answer/7384506?hl=e...
I guess I should have started using forname@surname.tld to make it all nice and neat, but I've no desire to change now.