title: meaning of the values of sent_status on msdb.dbo.sysmail_mailitems
body: <p>I am sending emails from SQL Server, and need to map the values of the <code>sent_status</code> column on the <code>msdb.dbo.sysmail_mailitems</code> table to something more descriptive.</p>
  
  <p>So far I have identified two values: </p>
  
  <ul>
  <li>1 = 'Sent'</li>
  <li>2 = 'Failed'</li>
  </ul>
  
  <p>Are there any more possible values, and if so what do they represent?</p>