Hi List, I am using Exchange 5.5 sp4 at WIndowsNT sp6a. This is the only server, I have. I am planning to add one more server to the same organization & site. What I think is: * Make one server Internal and other External * Keep the Information store on Internal * Install IMS on External * The internal and external should be able to exchange e-mails. I know a little bit as how to do it, but not clear how to start with. Could u pls. help in this matter. A detailed advice is expected. Also, is there a chance that I can use Exchange 2000 as external and Exchange 5.5 as Internal? <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> Regards, Chand Deshwal (M.Tech CS&E, MCSE, CCNA) Network Administrator Kampsax India Ltd., Gurgaon ph: +91 124 6348259-62, Extn. 712 chand@xxxxxxxxxxxxxxxxx <mailto:chand@xxxxxxxxxxxxxxxxx> http://www.kampsaxindia.com <http://www.kampsaxindia.com/>