Add an Automatic Reply (Out of Office) for a Shared Mailboxes in Outlook

Currently, the only solution found for adding an automatic reply (Out of Office) on a shared mailbox is via the Outlook web portal, it cannot be done via Microsoft Outlook the program.

Follow these steps:

1. Log into the Outlook Web Portal at https://outlook.office.com using your own Office 365 credentials

2. Click on your profile image (or placeholder image) on the top right

3. Select Open another mailbox

4. Type in the full email address of the shared mailbox you want to add the Automatic Reply to and click Open

5. Click on the settings cog on the top right

6. Click on View all Outlook Settings

7. Under the Mail option, click Automatic replies

8. Turn on automatic replies and you can set the time period if only required for a certain time frame

9. Once automatic replies is turn on, you will see the dialog boxes appear where you can type in the Automatic Reply you want.

Note: Best to put the message in box Inside and Outside your Organization dialog boxes to make sure everyone receives it

10. Click Save