In our company it is very much the norm (though some don’t and it’s not looked down on. It’s just we kinda know every handles the ridiculous amounts of email we get in different ways that suit them). And it’s the norm of the people who so to put that in there because 1. if you go anywhere north of where we’re at, you’ll get zero reception and 2. other people we work with know you normally do.
Seems like a big task, right? Well…wrong. You don’t need to stop by everyone in the office’s desks (if you’re even working in an office these days!) or send out an email to each and every client or lead. The easiest way to do this is by simply changing your voicemail greeting and adding an out-of-office email responder to your email client.

Even if you have a job you love, there are few things more satisfying than turning on an out-of-office email responder–especially when it’s for an actual vacation. There’s some serious relaxation in your future, and it’s well-deserved.
This is an automatic reply. Thank you very much for your email. I am currently on holiday until [date], I will not be able to respond to your emails promptly until I am back to the office. In the event that you need an urgent response, please call the office directly on: 1) Office Lines (Working Hours, Monday-Sunday + 3GMT): [Tel Numbers]