title: How to put a User Id that's an email address in a connection string
body: <p>I'm trying to connection to a SQL Azure db using a <code>sys.sysusers</code> with <code>name</code> equal to <code>"myname@mydoman"</code>. The issue is that when try with the connection string</p>
  
  <pre><code>Data Source=tcp:coolsqldb.database.windows.net,1433;Initial Catalog=Cool;Persist Security Info=False;User ID=myname@mydoman.com;...
  </code></pre>
  
  <p>I get the exception </p>
  
  <pre><code>Cannot open server "mydomain.com" requested by the login.  The login failed.
     at System.Data.SqlClient.SqlIn....
  </code></pre>
  
  <p>I've tried using quotes in <code>ID=myname@mydoman.com</code> so that it's <code>ID='myname@mydoman.com'</code>, but no luck. Any idea what I can do?</p>