A DPM server can have a maximum of %MaxExchangeEFs; Express Full backups for each Exchange Server 2007 storage group or each ...

A DPM server can have a maximum of %MaxExchangeEFs; Express Full backups for each Exchange Server 2007 storage group or each Exchange Server 2010 database per week. If you exceed this limit, the DPM server may miss the backup SLA and eventually it may become unresponsive. You currently have %NumExchangeEFs; Express Full backups of %DatasourceName; on %DPMServerName;.