Some days I'm tempted to go full-on Donald Knuth, but with social media rather than email:
I have been a happy man ever since January 1, 1990, when I no longer had an email address. I'd used email since about 1975, and it seems to me that 15 years of email is plenty for one lifetime.
I have a wonderful secretary who looks at the incoming postal mail and separates out anything that she knows I've been looking forward to seeing urgently. Everything else goes into a buffer storage area, which I empty periodically.
My secretary also prints out all nonspam email messages addressed to firstname.lastname@example.org or email@example.com, so that I can reply with written comments when I have a chance.