Step 1: Sign in to the Office 365 portal.
Step 2: Locate Users > Active users.
Step 3: Select a user who has a Microsoft Exchange mailbox.
Step 4: On the flyout menu on the right, locate Mail settings > Automatic replies
Step 1: Sign in to the Office 365 portal.
Step 2: Locate Users > Active users.
Step 3: Select a user who has a Microsoft Exchange mailbox.
Step 4: On the flyout menu on the right, locate Mail settings > Automatic replies