PEAR, Mail Queue and Mail Mime

[P]

Hello,

I have some trouble with my application.
It is written with PEAR, SMARTY ....
I should send an email to me and with Bcc to 50's else adresses.
But it send it just to me.
I am on an easyPhP server.
Here is my code

$mail_queue =& new Mail_Queue($db_options, $mail_options);

$from = 'm*@email.org';
$from_name = "MY";
$replyTo = "[e-mail]";
$message = stripslashes($msg);
$from_params = empty($from_name) ? '"'.$from_name.'" <'.$from.'>' :
'<'.$from.'>';
$hdrs = array( 'From' =$from_params,
'Reply-To'=$replyTo,
'To' =$from,
'Bcc' =$liste,
'Subject' =$sujet );

$mime =& new Mail_mime();
$mime->setTXTBody($msg);
$mime->addAttachment($pdf, $attach_type);
$body = $mime->get();
$hdrs = $mime->headers($hdrs);
$seconds_to_send = 1;
$delete_after_send = true;
$id_user = 7;
$mail_queue->put('','My Organisation',$from, 'm*@email.org', $hdrs,
$body, $seconds_to_send, $delete_after_send, $id_user);
$liste follow this pattern "ti**@tito.fr<ti**@tito.fr>,
ti**@tito.fr<ti**@tito.fr>,ti**@tito.fr<ti**@tito. fr>,
ti**@tito.fr<ti**@tito.fr>,"

How can I do to send My emails to the Bcc's addresses too ???

Does someone know something about this ???
Thanks for your help
P@