problem sending mail

["padmaja godbole" <padmajas221@rediffmail.com>]

Sir,
I have a online site using jsp and I am sending mail from a jsp page .But There was error message saying-- error sending the mail.IO ERROR IN SENDING EMAIL:554 : Recipient address rejected: Relay access denied .

and a returned mail from <MAILER-DAEMON@bom4.vsnl.net.in>
with message--
This is the Postfix program at host bom4.vsnl.net.in.

I'm sorry to have to inform you that the message returned
below could not be delivered to one or more destinations.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the message returned below.

           The Postfix program

<padmajas221@rediffmail.com>: host mail2.rediffmail.com[203.199.83.4] said: 553
sorry, your envelope sender is in my badmailfrom list (#5.7.1)
 
 

 This was sent from a JSP page!

Cool beans! :-)
 
--------
pls help mw out to solve this problem

thanks in advans
padmaja 


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