Hi . I`m in a situation where i got new 6 sites running Exchange 2K and the root romain running Exchange 5.5 enterprise Cluster server.All sites connected together using COINS. Only the root domain has the access to the internet for sending and receiving mails. How to configure this Exchange 2K to send messages and receive through the root domain using smtp and X.400 connector. Need advices and which part is the crucial part to configure.. thank you in advance Azhar Asst Engineer Pernec Technologies Sdn. Bhd. --------------------------------- Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now