Lync Agent DNS Checker is a very simple tool to remotely test DNS records against those required for Lync 2013, Lync Online, Exchange 2013 and/or Office 365.
The tool uses a number of external DNS servers (Google, Microsoft, and others) to remotely query a domain name, to ensure accurate results.
This is purely an informational tool – no registration or advertisments, and has just one single function.
The App is available for free in the Windows Phone store. Simply follow the link below.