LiveAgent uses Microsoft OAuth authentication to connect with your Outlook/Office 365 accounts. After you authenticate this connection in a pop-up window, your Outlook/Office 365 mailbox is connected, and no further configuration is needed. Just follow these simple steps:
In your LiveAgent account, navigate to Configuration > Email > Outgoing Mail accounts, and click on the "Integrate new email account" button.
In the left "Mailbox account" section, use the predefined Microsoft connector to connect your Outlook/Office 365 account.
On the next screen, click on the "Connect" button. It will automatically open a pop-up window with a Microsoft login page, where you need to authorize yourself/log in to the Microsoft account that you want to connect as an outgoing email account. After successful authentication and login, the pop-up window will be automatically closed.
After the pop-up window is automatically closed, Finish the integration in LiveAgent.
That's it, your Outlook/Office 365 account will be successfully connected with your LiveAgent account, and you can start sending replies to your tickets/emails through this mail account directly from LiveAgent.