Writing the 'From ' line

My goal is to get a mbox file with the messages sorted by 
$msg->timestamp.

I'm reading message from one mailbox, sorting by $msg->timestamp, and 
adding the messages to an outbox with:

  $outbox->addMessage( $message );

But the resulting mbox file is not is the same order as I add the 
messages.

So, I thought about writing the mbox manually using 

   $message->write;

so the output would include the 'From ', but it's not being output.
How do I get the 'From ' line included in the message output?  

I'm using Mail::Box::Manager to open both the input and output.




-- 
Bill Moseley
[email protected]