[OFF-TOPIC] Does 2.7 RPM Work on RHEL 6?

[Carlos Mennens]

I know there's an un-official 2.7 Postfix RPM that I believe Simon
created for RHEL 5 64-bit but does anyone know if there's a RHEL 6
64-bit version available or if the RHEL 5 version will install / work
on RHEL 6?