The built-in editor in CodeTwo Exchange Rules includes a functionality enabling quick and easy insertion of AD placeholders that are filled with data dynamically when the message travels through Exchange Server. Apart from the standard fields (e.g. First Name, Last Name, Company, Title Department), the AD button allows using extra placeholders, listed under Exchattr. If you combine extra placeholders and a suppressing tool of CodeTwo Exchange Rules you might be able to let your users decide which footer is to be added by the program and in each language.