Using Classic Outlook on Windows for personal email, calendar, and contact management
Hello, thank you for reaching out to Microsoft Q&A.
Are you able to send and receive emails normally at https://outlook.live.com/?
Open any web browser and start an incognito/private browsing session.
Then check whether you can send and receive emails there. If you can send and receive emails online, your Outlook email account itself is working correctly. However, if you are unable to send or receive emails there, you may need to review your Outlook account storage or check any email forwarding rules that might be affecting message delivery.
- To check your account storage (Go to Outlook email settings > Click Accounts > Storage).
- See if you have enough storage space to send or receive emails online.
First, let me know if you are able to send or receive emails online.