How To Configure Sending An Office 365 Out Of Office Message
You can set up a custom message that will be sent out during a specific time frame, if you choose, to everyone who emails you, or only to people in your Contacts list We'll show you how NOTE You can only use Outlookcom with Microsoft email accounts—livecom, outlookcom, hotmailcom, and msncom If you want to enable Automatic Replies for the shared mailbox in Outlook but are still using Outlook 07 or previous, then you'll have to use the Mail applet in Control Panel to create an additional Mail Profile You'd then set up this Mail Profile with the shared mailbox as the main mail account rather than your own
Set up out of office in outlook web app