Dear Helper Let me explain my scenario, We are in the mid of Exchange 2000 Migration from Exch 5.5. There are 3 Exch 5.5 sites, around 42 servers which are evenly distributed. We have two Exchange 5.5 Outlook Web Access (Webmail) servers, the user connect to these for OWA for their mails over Internet. My question is when we introduce first exchange 2000 server, in a site and move some or all users from 5.5 to 2000 server, how these user will be directed to the new E2K server from OWA server, which is still 5.5. Do we need to do some workaround or any suggestions. It is very urgent if any one can help. Thanks Farrukh Anwar