[support] Help with SMTP Setup

Hi All,

I have hMailServer just installed on my local windows 2003 and tried to use it for SMTP server in my Drupal 6.x installation on the same machine. I've configured hMailServer to use my ip address as domain (I don't have a domain name yet so I am not sure whether this will work or not.) and set up a webmaster account on hMailServer. I also changed mail function setting in php.ini file. But the SMTP in Drupal is still not working and I got the following error message:

warning: mail() [function.mail]: SMTP server response: 530 SMTP authentication is required. in D:\wamp\www\includes\mail.inc on line 192. Unable to send e-mail. Please contact the site administrator if the problem persists.

Can anyone help me out with this?

Thanks. Tom