All of my users have the email address appearing as username@ABCdefg.com and I would like them to appear as firstname.lastname@example.org (basically lowercase). I am using Exchange Server 2003 Std. in an all Windows 2003 forest. I tried changing the RUP defautl policy so that "ABCdefg" domain name would appear as "abcdefg" but even when I go to make a new user the defauly email address is going to @ABCdefg.com and then I have to later change it under the users SMTP address setting. The main purpose for my request is because I am using Exclaimer to produce corp. signatures and I do not want the email address to appear in uppercase.