This tool is used to check remote connectivity with Microsoft O365 services including Exchange, and Lync Online. It is used to identify the causes of following issues:
- Verification of users' credentials.
- Licenses.
- Updates to Outlook clients.
- Outlook servers reach ability.
The results retrieved by this tool are automatically saved in a log file for further investigation. You can download this tool from the following link:
https://testconnectivity.microsoft.com/
