Top www.codetwo.com https://www.codetwo.com/blog/11-professional-out-of-office-examples/ · If you can and do – include this information in your out of office message. This will give your out of office message a professional vibe. But if you are not going to look at emails when you are gone – do not give others any false hope. The reason for absence – now this one is tricky. You should include the reason for your absence (vacation/ business travel), but you should avoid being specific.
A relatively unprofessional one — like mine, for instance — does the opposite: It encourages prospects, recruiters, and potential connections to run in the other direction.

My colleague does that just for holidays.. it does say who else to contact, but tbh if I’m emailing him a couple of days before he’s due to return then I’m not massively impressed at the insinuation I should take the action of remembering to resend it… in reality I think he probably does read *some* emails but clearly views the OOO as a way to absolve responsibility if he misses something..
If you are checking emails while you’re out and are responding slower than normal, state that, suggests Jill Gugino Panté, director of the Lerner Career Services Center at the University of Delaware. “If you don’t have access to email and can’t return messages, state that as well,” she says. “The clearer you are in your messaging, the better.”