Open Microsoft Outlook.
Select File from the top menu bar, select Account Settings and then Manage Profiles.
Now click Show Profiles.
Click Add to create a new mail profile.
Enter a new profile name when prompted. We recommend prefixing your name with ‘M365 –‘
Enter the email address associated with your primary mailbox, and make sure that your name is entered as required.
If your email address has been registered as both a Personal and Work or school account with Microsoft, you will be prompted to select which account. Please select Work or school account when prompted.
When prompted regarding staying signed in to all your apps, please select OK.
Your new mail profile has now been created.
You now need to tell Microsoft Outlook to use your new mail profile that begins with ‘M365 -‘ when opening the application. Simply select Always use this profile and then click Apply followed by OK.
You can now open Microsoft Outlook to access to your M365 mailbox.
Please note that your mailbox will need to update the local cached contents, which will take some time (Internet speed dependent).