Email Helper only sends one of three emails successfully

[eluser]BrandonDurham[/eluser]
I have an email helper set up that sends the contents of a submitted form to three different email addresses. One to my own personal email address (@amillionthingstodo.com) and two to my employer's email addresses (@adlucent.com). For some reason the two to my employer's addresses never actually arrive. Stranger yet, if I enter my own email address into contact form I quickly get a MAILER-DAEMON failure notice in my inbox that says the message wasn't delivered.

Any insight as to why this might be happening??

Here is the code for my helper:

Code:

function send_comment($fromname=NULL, $fromemail=NULL, $phone=NULL, $company=NULL, $comments=NULL)
    {
        if ($fromname == NULL || $fromemail == NULL || $phone == NULL) return false;

        $CI =& get_instance();

        $CI->load->library('email');

        $CI->email->from($fromemail, $fromname);
        $CI->email->to('[email protected]');
        $CI->email->to('[email protected]');
        $CI->email->bcc('[email protected]');

        $CI->email->subject('SITE CONTACT');

        $message = "Name: " . $fromname;
        $message .= "\nEmail: " . $fromemail;
        $message .= "\nPhone: " . $phone;
        $message .= "\nCompany: " . $company;
        $message .= "\nDate & Time Sent: " . date("l, F jS (g:iA)", strtotime(date('Y-m-d H:i:s')));
        $message .= "\n===========================================================================";
        $message .= "\n\n" . $comments;

        $CI->email->message($message);

        if ($CI->email->send()) return true;
        return false;
    }