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Setting up DNS for Office365 on Fasthosts

September 19, 2014 by The Man

If you have ever set up Office 365 but wanted to keep control of your DNS you’ll know you get a great checking from Microsoft as to what you need to add. However the information on the SRV record isn’t quite right. It should look like this, hope it helps somebody.

Screen Shot 2014-09-19 at 11.15.41

Note that _sipfederationtls._tcp for sipfed.online.lync.com includes the _tcp and _sip._tls for sipdir.online.lync.com includes the extra _tls