Yeah, announcing you were going to delete emails unread and expecting the sender to resend when you return would NEVER fly in my office. I’d get executive complaints about that, especially if it went to a client or outside party – if a client can’t reach you, they will reach out to someone else who may not work at your organization and you lose business. I feel like this delete-it-all philosophy would only work for an entirely internal role where timelines are more relaxed, and even then, I feel it’s a bit unprofessional to foist your own catch-up work onto others, especially if they’ve been backfilling for you while you were OOO.
Honestly, what drives me crazy is after someone has emailed me, gets the out of office, then *does* email someone else instead of waiting for me to get back. Yet said someone doesn’t email me back to say “see you’re out, person X got it taken care of, you can disregard my email”. So then I waste time seeing the initial request and following up. Has anyone found a good wording / other solution to know if the request was completed by someone else?

I work in a role where someone else has to cover when I’m out, so most things do get taken care of. I have never been in a position where I could delete all emails without ruffling some serious feathers, so while I appreciate the motivation, it’s a completely foreign option to me.
Thanks so much for your email. I’ve decided to take advantage of the holiday weekend and truly take [Monday/Friday] off. In an effort to come back fully recharged, I won’t be checking my email. Don’t worry though, if it’s urgent, you can reach out to [name] at [email address].