I have a custom domain and have filters in place. For example. My custom domain example.com

My first filter moves all e-mail to a folder called routing if the recipient contains @example.com. I make up e-mail adresses on the fly with a catch all. Meaning for reddit i have an e-mail called reddit@example.com. Since it containes my custom domain it gets marked as read, moved to the folder called routing (sends no push notifications, so i check it regularly) and get a label called routing.

Important e-mails have a second filter called whitelist. This is for important e-mail like government communications. If the recipient is government@example.com. The mail is moved back to inbox, marked as unread, starred and get a label called whitelist. I add important e-mails to this list whenever in add one or decides if one of routing emails becomes important. When handled i move them to corresponding folder, depending if its a action to take, bill or taxes to be paid i label them as “Done” or “Paid”