When you use the Exchange Public Folder Synchronization Agent (Exssrv.exe) to replicate free and busy folders from one organization to another organization, the following error message may be logged in the Ex00yymmdd.log file in the Exchsync folder (where
stream_name is the stream that is used to import the changes to the destination server
server_name in the Exchange site that is represented by /o=
org/ou=
site):
ERROR: Unable to open ISTREAM 'stream_name' in replication state file, failed [80030005].
ERROR: Unable to get collector for folder 'EX:/o=org/ou=site' on server [server_name].
This error message is logged only when you are replicating free and busy folders for multiple organizations.