property may be set to <code>false</code> to cause a
 <code>MessagingException</code> to be thrown if the multipart
 data does not end with the required end boundary line.  If this
 property is set to <code>true</code> or not set, missing end
 boundaries are not considered an error and the final body part
 ends at the end of the data. <p>

 The <code>mail.mime.multipart.ignoremissingboundaryparameter</code>
 System property may be set to <code>false</code> to cause a
 <code>MessagingException</code> to be t