emailgtw has a dependency on MS Visual Studio 2008 vs2008_redist_x86 & vs2008_redist_x64 which is out of support and our security policy does not allow.
Environment
Release : 20.4
Component : emailgtw 2.84
Resolution
Update to emailgtw 2.90 or later. 2.90 is attached here.
Additional Information
To see the dependency, go to the IM console > Archive > right click on the package > Edit > click the Dependencies tab.