But this absence of basic travel cybersecurity is a problem. Email is the number one threat vector for socially engineered attacks. An automatic reply message not only sends the information to designated contacts, but it also bounces back to people who send phishing emails. Threat actors use any details found in OOO messages to craft targeted social engineering messages. Well-targeted messages build trust that threat actors take advantage of.
If you scroll down, towards the bottom you'll find a section called Vacation Responder. There, tick Vacation Responder On and fill in the dates for when you want any received emails to be replied to with the automatic response.

Above a certain level in my agency managers have to designate an official delegate when they’re out, which can easily result in out of office messages like what you’ve listed. Not the most elegant, but clear and useful!
An out of office message is a compact text that conveys the most important facts: How long you’ll be unreachable, when your contacts can expect an answer, (optionally) the reason for the absence, and, if necessary, a personal note. A referral to another email address, e.g. to one of your colleagues, is often helpful or even necessary.