string &get ( 
      array $param
        = null
      
       , resource $filename
        = null
      
       , boolean $skip_head
        = false
      
     )
This function should be called once you have added the text/html/images/attachments. It builds the message and returns it. It does not send it. To send what this function returns (in conjunction with the headers() -function) you would need to use the Mail::send()-function
        array $param - An associative array of build parameters.
        See constructor parameters list.
       
        resource $filename - Optional output file where to save the message
        instead of returning it.
       
        boolean $skip_head - True if you want to return/save only the message without headers.
       
     string - the body of the message
    
This function can not be called statically.
For versions older than 1.6.0 Mail_Mime::get() has to be called before Mail_Mime::headers().