Hi, I need to hide my domain name and IP Address from the email header in exchange 2003, and if its not possible I need to change the email header to my FE server insted of the BE Server. thanks in advance.

Have you tried it here? Server/protocals/SMTP/ smtp virtual server-> Properties - delivery - Advanced Refer this kb too: http://support.microsoft.com/kb/904001/en-usRegards from www.windowsadmin.info | www.blog.windowsadmin.info