Looking for a complete grepmail package

I unpacked the latest grepmail, and discovered that it wasn't
complete.. it requires other tools, such as MessageParser.  I then
downloaded MessageParser, which I discovered requires an additional
tool called Unget.  I downloaded Unget, which requires yet another
tool: Scalar Util.  If I download Scalar Util, will it require another
tool?  

I have no idea how deep this rabbit hole goes, so I'm about to give
up.  There are also required tools at the same level of dependancy
tree as MessageParser, which I didn't even begin to investigate.
Scavenger hunts are for the birds.

Does anyone know of a complete and fully functional distribution that
I can install in one go?


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