Step 1: Once your IT team has installed the Outlook plugin, every user will be able to see Navatar icon in their outlook at the top right as shown below:
Step 2: Open any of your email, and then click on Navatar icon and after that click on Open Navatar as shown below. A side panel will open which will ask you to login into your Salesforce Account.
Step 3: Once you click on Salesforce account, a browser window will open. Now, enter your Navatar credentials.
Step 4: Click Allow to grant Navatar outlook plugin the access to log in.
Step 5: Come back to outlook and Click Connect to Office 365. A browser window with Office 365 login page will be opened.
Step 6: Enter your Office 365 login credentials in the dialog box
Step 7: Just click on next and accept the permission and then you will be registered in Navatar outlook plugin.