EV 10.0.4 and Exchange 2013 cu3 Journal archiving
After turning on Journaling in Exchange 2013, the users getting Journaled now receive messages from email@example.com. Recipients receive these blank messages once every 5 minutes with the subject "inbound proxy probe". Another bit of information is that we are in the middle of an email migration in 2 separate AD forests using Quest for migration and synchronization. The source Exchange system is 2007.
The EV 10.0.4 post .4 hotfix is installed, plus the Exchange 2013 cu 3 EV hotfix is installed. SynchInMigrationMode is set in the registry.
If anyone has heard of this please let me know.