// This is a PHP4b3 problem             //
// No option for this in the dropdown...//

Mail() doesn't accept multiple recipients.

Instead of sending every recipient in separate SMTP-RECPT TO: messages , they are sent in just one.
The mailserver respond with "bad address".

The recipients in "Cc:" does not get any mail at all...

Here is a code snippet:

$To = "bjarne.ingelsson@enator.se,bjarne@shamrocksoftware.com";
$Cc = "leif@shamrocksoftware.com";
$From = "tsa4400@enator.se";
$ReplyTo = "bjarne.ingelsson@enator.se";
$ReportTo = "bjarne.ingelsson@enator.se";

// Mail Subject
$Subject = "Fault Report - " . $txtSubject;

// Additional headers...
$AddHeaders = "Cc: " . $Cc . "\n";
$AddHeaders .= "From: " . $From . "\n";
$AddHeaders .= "MIME-Version: 1.0\n";		
$AddHeaders .= "Content-Type: text/html; charset=iso-8859-1\n";	
$AddHeaders .= "Content-Transfer-Encoding: 8bit\n"; $AddHeaders .= "X-Non-Delivery-Report-Requested: True\n"; $AddHeaders .= "X-Report-To: " . $ReportTo . "\n"; $AddHeaders .= "X-Mailer: PHP" . phpversion();		

mail ($To,$Subject,$MailBody,$AddHeaders);