title: Sending 2 emails with PHP mailer fails
body: <p>I am rather puzzled with this one. </p>
  
  <pre><code>//SMTP servers details
  $mail-&gt;IsSMTP(); 
  $mail-&gt;Host = "mail.hostserver.com";  
  $mail-&gt;SMTPAuth = false;     
  $mail-&gt;Username = $myEmail;  // SMTP usr
  $mail-&gt;Password = "****";    // SMTP pass
  $mail-&gt;SMTPKeepAlive = true;   
  $mail-&gt;From = $patrickEmail; 
  $mail-&gt;FromName = "***";    
  $mail-&gt;AddAddress($email, $firstName . " " . $lastName); 
  $mail-&gt;WordWrap = 50;                                 
  $mail-&gt;IsHTML(true);                                  
  $mail-&gt;Subject = $client_subject;
  $mail-&gt;Body    = $client_msg;
  
  if($mail-&gt;Send())
  {
  
  $mail-&gt;ClearAllRecipients(); 
  $mail-&gt;ClearReplyTos();
  $mail-&gt;ClearCustomHeaders();
  ...
  $mail-&gt;From = "DO_NOT_REPLY@..."; 
  $mail-&gt;FromName = "****";    
  $mail-&gt;AddAddress($ToEmail1, "***"); //To: (recipients).
  $mail-&gt;AddAddress($ToEmail2, "***"); //To: (recipients).
  $mail-&gt;WordWrap = 50;            
  $mail-&gt;IsHTML(true);             
  $mail-&gt;Subject = $notification_subject;
  $mail-&gt;Body    = $notification_msg;
  if($mail-&gt;Send())
  {
  ...
  </code></pre>
  
  <p>The first email sends fine. The second one doesn't. What could be the reason for that behavior? Am I missing some kind of reset?</p>
  
  <hr>
  
  <p>Update: using a different mail server seems to work so apparently it's a setting of that specific mail server causing problems. Any idea what that could be?</p>