New Outlook and Outlook on the web
- 1
Open Settings (the gear at the top right), then Accounts › Automatic replies.
- 2
Turn on the Automatic replies toggle.
- 3
Check Send replies only during a time period. Start: the evening before you leave. End: the morning you're back.
- 4
Optional: check Block my calendar for this period and Automatically decline new invitations for events that occur during this period.
- 5
Paste your message into the box.
- 6
Work account? Check Send replies outside your organization, then Send replies only to contacts, and paste the outside version.
- 7
Select Save.
- Outlook sends your reply once to each sender. Editing it later resets that, so everyone gets the new version once.
- Without a time period, replies keep going until you switch them off.