You can tell Email Autoresponder to always use the default values in your tags, rather than inserting the required information in your messages. This would be a good way to check how your message will read if none of the required information is available.

This can be turned on and off by checking/unchecking the Force Default Personalization box in the Dynamic Data and Personalization section of the Profile screen. You can get there by selecting Profiles » Show from the menu bar and selecting Properties on the profile you wish to edit.