To edit your CAN-SPAM message, simply go to the templates for your campaign that you wish to edit the CAN-SPAM message for. (If you don’t currently see a CAN-SPAM message in your template, check the box underneath the body of your email. This will open a text box with your CAN-SPAM message that you can edit.)
The information in this message (like your address) is pulled directly from your project settings! You can edit this information by going to your Settings > Project Settings. You will see a section titled “Physical Address to be included as a part of CAN-SPAM footer” it’s here that you will be able to edit your information.