Office 365 Lync Domain Name Server (DNS) Connectivity Test








Verification
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Notice
The Remote Connectivity Analyzer is a web-based tool that's designed to help IT administrators troubleshoot connectivity issues with their Exchange Server deployments. It lets administrators test connectivity to their Exchange domains remotely from outside their organizations' internal networks. To use this tool, you must enter the credentials of a working account from the Exchange domain you want to test. To avoid the risk of your working credentials being exploited and compromising the security of your Exchange environment, we strongly recommend that you create a test account for the purpose of using this tool, and delete this account immediately after you've completed the connectivity testing.