title: WordPress on VPS running Plesk, no mail is being sent out
body: <p>I have a VPS server running PLESK(12.5.30) and all of the WordPress forms we have that are supposed to send to people who fill out forms, are not being sent. They are just sitting in the mail queue as 'deferred'.</p>
  
  <p>I think it has to do with php mail, but I can't seem to get this to work and my host is literally no help at all. I even called Plesk and they did not help.</p>
  
  <p>Any ideas?</p>
  
  <p>Thanks!</p>