I've just installed this component and I also receive the same error when trying to test out the component:
Error: 0xC0047008 at Data Flow Task, SSIS.Pipeline: The package contains two objects with the duplicate name of "property "Row Count Variable" (90)" and "property "Row Count Variable" (75)".
Error: 0xC004706B at Data Flow Task, SSIS.Pipeline: "component "EmailToSendDestination" (70)" failed validation and returned validation status "VS_ISCORRUPT".
Error: 0xC004700C at Data Flow Task, SSIS.Pipeline: One or more component failed validation.
Error: 0xC0024107 at Data Flow Task: There were errors during task validation.
