[Zope] problem with mailfrom

[Lorenzo Rondelli]

I'm trying to create a mailform but I always have this error :

Zope Error

         Zope has encountered an error while publishing this resource.

         Error Type: SMTP Error
         Error Value: Recieved error code 503 from SMTP: 503 No recipients have
         been specified.

I don't understand what is the recipient. Can someone help me ?
thanks in advance


......................This is the main ........................

<dtml-var standard_html_header>

<!--#var standard_html_header-->
                     <H2>We want your input!</H2>

                     <form action="SendFeedback" method="post">
                     Your Name: <input type="text" name="name" size="40">
                     <br>
                     <textarea name="comments" rows="10" cols="50">
                     Inserisci la tua richiesta in questa finestra
                     </textarea><br>
                     <input type="submit" value="Send Feedback">
                     </form>
                     <!--#var standard_html_footer-->
<dtml-var standard_html_footer>


................... SendFeedback..........


<!--#var standard_html_header-->

           <!--#sendmail mailhost="MailHost"-->
           To: Feedback Recipient gino@gate
           From: Zope Feedback Form lorenzo.rondelli@gate
           Subject: Feedback from the web

           Feedback from : <!--#var name-->
           Comments:
           <!--#var comments-->
           <!--#/sendmail-->

           <h1>Thank you for your input!</h1>
           <p>Your comments have been sent.</p>

<!--#var standard_html_footer-->


...................my  MailHost is this .....................

Id: MailHost
Local Host : linux (the name where zope running on)
SMTP Host : gate
SMTP Port : 25