I have some users that are members of a small business domain, I migrated their Exchange mailboxes to another 2003 domain running Exchange 2007. These users are still logging into the small bz domain and have Outlook 2007 setup to connect to the 2003 domain with an exchange 2007 server. Out of office and free busy does not work. When trying to open Out of office this error comes up "Your Out of Office settings cannot be displayed, because the server is currently unavailable. Try again later". It can be accessed from outlook web access.
Based on what I've found the issue is a result of the users being logged into one domain but accessing a mailbox in another that is a separate, untrusted domain. Can anyone confirm with this exact scenario meaning 2 separate domains and accessing exchange from one to the other. Are there any workarounds?