Open Command prompt:
1. Open the Command Prompt window by clicking the Start button, All Programs, Accessories, and then Command Prompt.
2. Click the Start button. In the Search box, enter Command Prompt and double-click Command Prompt in the list of results.
3. Just hold down the Shift key and right-click on a blank space within your desktop and select Open Command Window Here.
Type: ping autodiscover.yourdomainname.com
If correct, it will say Pinging autodiscover-namsouth.outlook.com [18.104.22.168] with ... (this IP address may vary)
Request timed out. (This response is Okay.)
This test will ensure you can see the record from your network.
What is a TXT record?