Using Exchange 2010 SP2 in multiple environments.
Across trusted forests, I can successfully perform:
Add-MailboxPermission -identity <domain1 user> -user "domain2\useralias" -accessrights 'FullAccess'
But the following will not work, using a similar format or email address or alias or contact...
Add-MailboxFolderPermission -identity "domain1 user:\Calendar" -AccessRights Editor -user "domain2\useralias"
.. returns the error.... The user "domain2\useralias" is either not valid SMTP address, or there is no matching information.
Is there a way to make the latter option work? Attempting to provide specific folder access without full access, thanks.