Failed to add a domain to the list supported by SIP registrar in this Lync Server deployment. Domain: %1; Allow sub-domains: ...

Failed to add a domain to the list supported by SIP registrar in this Lync Server deployment.

Domain: %1; Allow sub-domains: %2; Authoritative: %3.
Cause: This may be due to a previous failure or, in rare cases, due to low resource conditions.
Resolution:
Check the previous event log entries and resolve any failures. Restart the server. If the problem persists, contact Product Support Services.