I have user mailboxes on 2003 and a few on 2010 (testing phase). My mailbox on 2010 can send and receive emails no problem. But when I go to https://webmail.domain.com I get the OWA 2010 login screen but when I try to login nothing happens - just freezes.
When a user who has a mailbox on 2003 goes to the same link and is presented with the 2010 OWAlogon scrren and logs in they are then redirected to their OWA (2003 format).
How can I get it to work with users on 2010?