Just installed Exchange 2007...... In Exchange 2003, if i was logged into a workstation i could log into any account in the organization by changing the user account in mail accounts. Now with Exchange 2007, when i go to Email Accounts, Exchange Server Settings and enter a user and hit check name, i am being forced to authenticate with a login box. Is there a way to have Exchange 2007 use my Windows authentication as Domain Administrator to do this? i want to eliminate the login box that pops up. Thanks!

get-mailboxserver | Add-MailboxPermission "Mailbox" -User "Trusted User" -AccessRights FullAccess trusted user being your account.

ok, i did this for a single user and verified it worked properly. Thanks! do i have to perform this task for all users in my org? or is there a way i can assign the right at a higher level so it's inherited for all users?

piping the command from a get-mailbox can apply it to all users, and you can include a s.g. for 'trusted user'.