title: How to combine variable with the rest of the command
body: <p>How do I combine a variable with the rest of the command, without getting an error:</p>
  
  <p>i.e. I want to issue: </p>
  
  <pre><code>Set-MailboxFolderPermission -Identity fred.bloggs@here.com:\Calendar -User Default -AccessRights Reviewer
  </code></pre>
  
  <p>But using a variable $email for the email address. I tried:</p>
  
  <pre><code>Set-MailboxFolderPermission -Identity $email:\Calendar -User Default -AccessRights Reviewer
  </code></pre>
  
  <p>But this gives an error.</p>