14. "Hello, you've reached the Sales Department at [Company name]. All of our representatives are currently helping clients [insert goal such as, 'achieve 40% growth through streamlining HR operations'] and are unable to take your call. Please leave your name, company, and phone number and we'll give you a call back ASAP. Thank you!"
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.

When one of my colleagues is out of the office, he doesn’t mess around. In fact, he’s turned his auto-responses into a running series of commentary from fictional cartoon character Troy McClure.
I know I’m supposed to say that I’ll have limited access to email and won’t be able to respond until I return — but that’s not true. My blackberry will be with me and I can respond if I need to. And I recognize that I’ll probably need to interrupt my vacation from time to time to deal with something urgent.