title: IIS 6 smtp messages stuck in inetpub/mailroot/queue
body: <p>When I try to send emails to domains like yahoo.com, msn.com.... I see that the messages are stored in inetpub/mailroot/queue and are not forwarded to the corresponding addresses. </p>
  
  <p>I set authentication not required, and in the relay tab I selected allow computers which succesfully authenticate to relay...</p>
  
  <p>My question is: why remain the messages in ../queue? Ho can I fix this problem?</p>