You should be able to use the "msend" for Linux supplied with BMC Impact Manager 7.4. Or the "msend" for Linux supplied with BMC ProactiveNet Performance Manager 8.5 or 8.6.
I am running Impact Manager 7.3. Maybe that one would have worked.
But I did get the msend 7.4 from BMC Support (Thanks Anand) and it is working correctly.