A default instance of Service Broker exists for every database you create. To find it by using the SQL Server Management Studio Object Browser, you look under the
Service Broker node directly under your database’s root node.
When you expand the
Services node under the
Service Broker node, it becomes readily apparent that, under the covers, SQL Server uses Service Broker services to implement some of its other built-in functionality, including Database Mail.
If you expand a few subnodes under the
Service Broker node, you can see most of the Service Broker constructs:
Message Types—These (optionally typed) envelopes ...