leopope on "[Plugin: Contact Form 7] Error sending message via Contact form on Daisho"

I've set up three scripts.

mail()
http://www.leopope.com/mail.php

smtp;
http://www.leopope.com/smtp.mail.php

wp_mail();
http://www.leopope.com/wp.mail.php

In your wp mail smtp i updated the host to:
localhost

from:
smtp.leopope.com

Then sent out an email it worked fine.

But the error message keeps on appearing! How do I get rid of it?