Horde-4, Imp-5 and the other usual components are available for CentOS6.
The packages were originally derived from OpenSuSE some time ago, using some scripts to convert them to my preferred environment. After that conversion, they are updated independently and do not depend from OpenSuSE anymore.
This is my latest Postfix Admin package, version 2.3.5. Personally I prefer the shell, but an interface like this is much more relaxing for provider operators (and for the admin too!).
This package includes three patches that implement some functionality that seem to be indispensable for some providers, to the point of changing a
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