A new requirement now with Recovery Manager for Exchange is the Operating System (OS) where RME is installed for Emulation mode it must match the OS that the Exchange backup came from.
This requirement is for any back up software that is listed in our release notes that uses Exchange Emulation.
In some instances a restore to RME in emulation mode might work, however if one should run into any problems it will not be supported unless the OS matches where the backup came from.
STATUS
The Release notes and product documentation is will be updated in version 5.6.1 to reflect this requirement.