Please be informed, I am in a workshop and would be having no/limited access to emails. I will be back in the office on 9th-October-2020 and will do my best to respond promptly to your email when I return.
But I'm someone who has co-workers in almost every time zone, on almost every continent, and in almost every geographic region, and I simply can't imagine using most of these examples with co-workers in, say, South Korea or Japan or Nicaragua. Like, the account manager who reaches out to me for help accessing a particular system in Seoul doesn't need my personal story about why I'm taking time off and all the fun (or, for that matter, not fun) things that I'll be doing — they need help gaining access to [system] in order to complete the job tasks that have been assigned to them. If I am not available to help them, they need to know who can, and if there just *isn't* anyone else who can perform this task, they need to know when I will be able to.

Website: https://www.weavehelp.com/hc/en-us/articles/360060999791-Listening-to-Voicemail-Messages
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.