He goes away for months at a time. Sick with cancer. I just happened to catch him in a helping mood.
The class_bbcode_mail.php file appears to be a duplicate of the class_bbcode.php file. The class_bbcode.php file has no changes from the original, but the class_bbcode.mail.php changes the following line:
$text = $this->parse_whitespace_newlines($text, $do_nl2br);
to
//$text = $this->parse_whitespace_newlines($text, $do_nl2br);
Basically just commenting it out.
Then... I found in your upload/dbtech/vbmail/actions/mailinglists.php file that he modified the following to call up class_bbcode_mail.php instead of class_bbcode.php:
require_once(DIR . '/includes/class_bbcode.php');
to
require_once(DIR . '/includes/class_bbcode_mail.php');
I just did not catch the mailinglists.php file earlier, but I knew if he created a near duplicate of a file that he was going to make something in your files call up that new file instead of the original vb file.