GoDaddy is notoriously troublesome with sending emails.
for the smtp server address, use:
smtp.secureserver.net
PowerStore uses the php mail() function for sending the email. Windows hosting packages on godaddy do not support php mail(), you will need to ensure you are using linux hosting, and even then, the php mail() is only available with php 5 on GoDaddy, so make sure your site is configured to use php 5.