title: Reverse DNS does not match SMTP Banner
body: <p>I am using the MDaemon Email Server. When I test my domain (mail.mydomain.com.sg) with MX Lookup, it shows the following error:</p>
  
  <p>SMTP Banner Check   Reverse DNS does not match SMTP Banner</p>
  
  <p>How do I fix this error? </p>
  
  <p>I already checked ptr:my Email Server IP Address and mx:my Email Server IP Address, it shows properly. I also added a SPF/TXT record in my domain.</p>
  
  <p>please advice me. Thanks.</p>