Hi Folks, We have 2 domains in our Windows 2000 forest. In the parent domain, we have one Exchange 2000 standard with SP3. In the child domain, we have one Exchange 2000 Enterprise with SP3. For some reason, all of a sudden our users that belongs to the child domain and has their mailboxes in the child domain's Exchange 2000 server can not check emails using OWA. They can check using regular Outlook client. Please advice. Thank you in advance.