The Recovery Manager for Exchange version 5.6 Release Notes show that vRanger versions 5.3, 5.4, 5.5, 6.0, and 6.1 are supported
Currently Recovery Manager for Exchange version 5.6 does not support vRanger version 7.
Version 5.7 (Released Sept 2015) does support vRanger 7.0 and 7.1
