Ugh, I wouldn’t mind changing daily if I could have a couple of prepared responses for normal circumstances (i.e.: “I’ve left for the day, but I’ll be back in the office tomorrow morning to return your call”) to select from, but having to create a new message for Tuesday night when the info for Monday night is the same? Rage inducing. Email is asynchronous, you KNOW you’re not going to get an instant reply and sometimes you email knowing fully well that it won’t be seen until the next morning/week/whatever. Why on earth mandate an auto-reply for that?
Plus, he incorporated a delightful technique to let people know that if they really wanted him to read their emails, they should probably send them again after his return. Not only does that keep the sender accountable by saying, “If this is really important, you know when to reach me,” but it also helps him truly vacate his work while he’s away. And that’s hard to do. First, travel to my homeland of Florida. Climb to the highest peak of the tallest mountain. Find a rare flower (no specifics, of course… It’d be cheating). Put the flower back, because as the old hiking rule goes, “Leave everything as you found it.”

Apologies, but I am currently knee deep in sushi and shrines on the other side of the world in Japan. I will be back to the usual tea and crumpets when I return to the office on [DAY OF WEEK], [DATE]. If you have an urgent query about [BUSINESS] before then, please don’t hesitate to contact [NAME] in my absence. [EMAIL]. Thanks so much.
Yes. We do it that way in part because someone might be at a satellite office but out of OUR office and still be able to access emails, OR they might be completely offline at the beach. Saying you’re not answering emails can be helpful.