Having Problems Setting Up Contact Form

I’m having problems setting up a contact form. I have a contact form on my website and set it up based on the instructions at: http://formmail.dreamhost.com/

It works fine…or at least seems to…(no error message, and I get sent to the Thank You page I set up). However, the test emails I run never arrive. The site is hosted at Dreamhost with a domain hosted elsewhere, but pointing to Dreamhost. I’ve set up an email account at Dreamhost, which should get all the email and then forward them to another external email account.

But, I can’t even figure out if the form is sending the email to the email account, because when I click on -> Manage Emails -> mailbox manager, I get a “can’t find server” error message.

Any help would be appreciated!