problem with mail function when the time of connection with database in php

Hi,


I created the registration form .In that form email field also there.when click on submit button this email field will stored on the database.In the mail function to address mentioned as
$to="$_POST[email_addr]". By using like that i got the following error.

Warning: mail() [function.mail]: SMTP server response: 503 5.5.2 Need Rcpt command. in D:\wamp\www\register_initiated.php on line 17..

and by using like that

$to="hhh@gmail.com" not got the error.

plz tell that how to solve my error..

re: problem with mail function when the time of connection with database in php

try
[php]
$to = $_POST['field_name'];
[/php]