With the newest versions of Skype for Business, the configuration of the Skype for Business client is accomplished through Autodiscover.  Autodiscover requires two DNS records configured at the domain host.  This article provides the DNS record information needed by Skype for Business.  For assistance with configuring the DNS records for your specific domain, we recommend reaching out to your domain provider.




SRV Record:


This record is used for Skype for Business desktop clients as a method of autodiscover.

  • SRV Record: _sip
  • Protocol: _tls
  • Port: 443
  • Weight: 0
  • Priority: 0
  • Destination: access.na02.msexchangeoutlook.com
  • The complete record looks like this: _sip._tls.Domain.com


CNAME record:


This record is used for autodiscover on Skype for Business mobile clients as well as the Skype for Business client distributed in the Windows Store.

  • CNAME record: lyncdiscover
  • Destination: lyncrp.na02.msexchangeoutlook.com
  • The complete record looks like this: lyncdiscover.Domain.com