How do I set a vacation/out of office message?
You can set a message that will automatically reply to your emails when you are on vacation or otherwise out of the office for an extended period. This is commonly called a Vacation or Out Of Office auto-reply. This feature will only reply once to each email sender no matter how many messages they send each week, so mailing lists don't get filled with your auto-responses.
With Traditional Outlook:
Click on the Settings gear, and then on Automatic replies at the top of the list.
You’ll have many choices and options offered to you. Read through them carefully and be sure to scroll down to the bottom to see all that are offered. Make your selections, and then be sure to click OK to have your choices saved.