Feedback form which works on .asp script throws smtp autentication error

STEPS TO RESOLVE FEEDBACK FORM ERROR IN ASP.NET SCRIPT: If you get the below error message, follow the below steps to resolve Warning*: mail() [function.mail]: SMTP server response: 503 This mail server requires authentication when attempting to send to a non-local e-mail address. Please check your mail client settings or contact your administrator to verify […]