(If you have questions about the Read Image Host, please see the follow up in WHY section towards the bottom of the article)
After receiving the license file from your account manager, head to the management tool.
Select Actions and Import License.
Select the PoliteMail license, which will be a file that ends in .license, and open it.
Enter the license password provided in to you via email.
Select NO on the window that asks to change the Read Image Host.
Double check Validate Settings to make sure everything is properly running.
Why do I need to click NO?
If the Read Image Host is changed, any pictures associated with the email may not display properly or load out of order.
If YES was clicked by accident, simply head to Advanced then Image Host and adjust the Host Name accordingly.