Required DNS Change for Lync Mobile in Office 365

    There are some required changes to get AutoDiscover for Lync Mobile to work with Office 365 in DNS. Create a CName entries for your Office 365 domain:

    lyncdiscover CNAME (i.e. resolves to

    You can find out more about the network and DNS requirements of Lync for Office 365 here (this in addition sip and srv entries):

    Of course, if your an Agile IT customer, we take care of all of this for you. Find out more at Update  – Users that have their Lync Address using may have issues logging in using Lync Auto Discover.  You can circumvent the DNS requirements by turning off “Auto-detect services” and setting the external discovery address:

    Note - You can leave the internal discover address blank.

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