.rand(10000, 99999);
// generate a multipart/alternative message header
- $messageHeader = $params['additionalMailHeader'] .
+ $messageHeader = defaults($params, 'additionalMailHeader', '') .
"From: $fromName <{$params['fromEmail']}>\n" .
"Reply-To: $fromName <{$params['replyTo']}>\n" .
"MIME-Version: 1.0\n" .