title: PHPmailer class returns true but email is not delivered
body: <p>I am trying to send an email in following way -   </p>
  
  <pre><code>from : xyz@domain1.com  
  reply-to : xyz@domain1.com  
  to : abc@domain2.com  
  cc : abc@domain3.com  
  </code></pre>
  
  <p>My email is getting delivered to the address mentioned in CC (If I replace the emails to and cc, then email is sent to the address mentioned in to)</p>
  
  <p>For some reason, email is not getting delivered to the address abc@domain2.com. If I send the email manually to this address using outlook or gmail, then email is actually delivered. How can I debug this issue ?</p>
  
  <p>I checked spam/junk directories as well, no emails over there. I tried using php mail() function as well as phpmailer class. Both of them return TRUE. What could the reason ? Please help.</p>
  
  <pre><code>$mail-&gt;From = "xyz@domain1.com";   
  $mail-&gt;AddReplyTo("xyz@domain1.com");  
  $mail-&gt;AddAddress("abc@domain2.com");  
  $mail-&gt;AddCC("abc@domain3.com");  
  $mail-&gt;Subject = $subject;  
  $mail-&gt;Body = $message;  
  
  if(! $mail-&gt;Send()) {  
      echo "Message was not sent";  
      echo "Mailer Error: " . $mail-&gt;ErrorInfo;  
      exit; 
  } 
  </code></pre>