We have migrated some 5000 mailboxes (out of 15000) from an Exchange 2003 environment in to an external resource forest with linked mailboxes.
For some migrated mailboxes the Free/Busy information still exists in the Public folder. This is causing some issues with users resolving free busy information that is out of date (users that have not been migrated yet).
If I manually delete the message data in the PF for the affected user accounts the up to date free busy information is received. I can manually do this using MFCMAPI but given the amount of objects to delete I was wondering if it is possible to script this process. I have a CSV file with the account details of all migrated mailboxes. Is this possible?