enviar imagen con formulario dreamweaver

[playfield_kids]

muestro la etiqueta form

<form action="/cgi-bin/FormMail.cgi" method="post" enctype="multipart/form-data" name="form1" id="form1">

este mensaje de error me sale si en el formulario agrego un campo de archivo:
There was no recipient or an invalid recipient specified in the data sent to FormMail. Please make sure you have filled in the recipient form field with an e-mail address that has been configured in @recipients. More information on filling in recipient form fields and variables can be found in the README file.

Si le saco el campo de archivo, el resto de los datos del formulario los envia correctamente.
Gracias por su ayuda!!