Using New Outlook on Windows for personal email, calendar, and contact management
Hi,
The browser version of Outlook (Outlook on the web) cannot display a separate Gmail mailbox unless that Gmail address is itself your Microsoft account.
New Outlook supports that - you can download it here:
https://apps.microsoft.com/detail/9nrx63209r7b?hl=en-US&gl=US
It is basically an identical app version of OWA.
- Open New Outlook on Windows.
- Select Add account.
- Enter your Gmail address.
- Sign in with Google and approve the permissions.
- Your Gmail mailbox will sync with Outlook.
I look forward to hearing from you to get the results of the troubleshooting.