I am trying to replicate public folders between a Forest A 2k3 Exchange server and Forest B 2k10 Exchange SErver. I have IOREPL installed on the 2k3 server and have followed the IOREPL technet guide for install and configuration. When I attempt to view folder list for the Forest A, it logs in fine, but for Forest B 2k10, I get 'Unable to logon to Exchange Server using mailbox information'
Trusts in place (currently going through migration so I know they work), Had network team check firewall, nothing is being blocked. Can ping by fqdn. Not sure where else to look.
Thanks
Steve