How to create an automatic reply for out of office in Mail

In Outlook on the web or Outlook.com, automatic out-of-office replies can be set up as follows:

1. At the top of the page, go to Settings (gear icon) > Mail > Automatic replies.
2. Turn on the Automatic replies toggle.
3. To limit replies to a specific period, select Send replies only during a time period, then enter the start and end time.
4. (Optional) Select any of these options if needed:
   • Block my calendar for this period
   • Automatically decline new invitations for events that occur during this period
   • Decline and cancel my meetings during this period
5. In the message box, type the out-of-office message to send while away. Use the formatting options if desired.
6. To send replies to people outside the organization, select Send replies outside your organization and enter a separate message. For fewer automatic replies to newsletters or junk mail, choose Send replies only to contacts.
7. Select Save.

If no time period is set in step 3, automatic replies remain on until they are turned off by returning to Settings > Mail > Automatic replies and switching off the Automatic replies on toggle.

References:

• How to set up out of office automatic replies in Outlook