How do I set up the e-newsletter with mandrill.com email service

I am trying to setup the e-newsletter plugin to work with mailchimps mandrill email service, and cannot get the smtp working. When I send the test email.

"Failed to send test email! - Please check your outgoing email settings and server config to see if the selected ports are open. rror details: The following address failes: replaynot@healingcookery.com : Called Mail() without being connected"

Do you have a guide to setting this service up?

I am using lunarpages.com as my host, and they use cPanel for set up.

Any help would be appreciated.