title: Javamail issue with authentication using POP3 protocol
body: <p>I am facing problem related to authentication with exchange server 2010. Same was working with 2007. Below is debugging logs.</p>
  
  <pre><code>Properties props = System.getProperties(); &lt;br/&gt;
  props.setProperty("mail.debug.auth", "false"); &lt;br/&gt;
  Session session = Session.getInstance(props, null); &lt;br/&gt;
  session.setDebug(debug); &lt;br/&gt;
  store = session.getStore("pop3"); &lt;br/&gt;
  store.connect(host, user, password); &lt;br/&gt;
  </code></pre>
  
  <blockquote>
    <p>The Debug logs are:</p>
    
    <p>+OK The Microsoft Exchange POP3 service is ready.<br/> CAPA<br/>
    +OK<br/> TOP<br/> UIDL<br/> SASL NTLM GSSAPI PLAIN<br/> USER<br/> STLS<br/> DEBUG POP3: authentication command trace suppressed<br/>
    DEBUG POP3: authentication command failed<br/> QUIT<br/>
    +OK Microsoft Exchange Server 2010 POP3 server signing off.<br/> javax.mail.AuthenticationFailedException: Logon failure: unknown user
    name or bad password.<br/> at
    com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:209)<br/>
    at javax.mail.Service.connect(Service.java:345)<br/></p>
  </blockquote>