Hi,
I have configured the SMTP server under Site manager -> Settings -> System -> E-mails
I have tested by sending Email through Site manager -> Administration -> System -> E-mail and it is working fine.

Now, I created a Bizform having some fields along with Email which stores the visitors Email address.

Inside Autoresponder tab under Forms section, i selected the email for Confirmation e-mail source field: label and entered and Email address for From e-mail: label

But,
As the user enters their detail on the form through Live site, The Autoresponder Email is not working and Inside the Administration -> E-mail Queue, status shows Waiting.

I didn't understand whats going wrong with autoresponder.

Any help/ suggestions :)

Regards!
Ashish Narnoli