Nov 30, 2018
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- Log into the Outlook Web App at https://outlook.office365.com using your own Office 365 credentials
- Click on your profile image (or placeholder image) on the top right
- Choose Open another mailbox
- Type in the name or email address of the Shared Mailbox and select it
- Click the settings cog on the top right and then click Automatic replies
- Configure your automatic reply and you’re done.