How to set automatic replies on a user's mailbox in Office 365

This article describes steps that administrators can use to set automatic "out of office" replies on a user's mailbox in Microsoft Office 365.

1. Sign in to the Office 365 portal.
2. Locate Users > Active users (or Groups > Shared mailboxes if you set this on a shared mailbox).
3. Select a user who has a Microsoft Exchange mailbox.
4. On the flyout menu on the right, locate Mail settings > Automatic replies (if it's a shared mailbox, just locate Automatic replies on the flyout).