I gotta ask around about this more. For a long time I managed a bunch of very separate email addresses. For example, my personal email at firstname.lastname@example.org, a general CSS-Tricks email at email@example.com, and my CodePen-specific email firstname.lastname@example.org. They all happened to be Google-based, so that made it easier-ish. The mobile Gmail app was happy to let me look at a combined inbox, but apparently, there is no desktop version of that? Isn’t that weird?
I’m curious if people like/prefer combined inboxes (however they “host” their email), or prefer looking at inboxes separately. One challenge surely is making sure that when you send email it goes out from the proper account. That seems manageable enough if a bit error-prone.