title: Ironport rejecting emails
body: <p>I am looking for an answer from somebody who has experience with ironport. When an email is rejected by ironport (due to low reputation or whatever) does it write it someplace in a log? If so where. </p>
  
  <p>I am on the sender's side. Unfortunately I don't have access to the smtp logs of my server to see what errors ironport throws back. Is there a way to capture those in some other way? </p>
  
  <p>Is there a way to whitelist a sender domain in ironport? If so how (link to a documentation would be enough). </p>
  
  <p>Thank you!</p>