Where to get the latest zarafa client?

Hi!

Where can I find the latest (and last) Zarafa Client build?

Thank you!

I think they are offline - I just found 3rd party sources:
https://download.1afa.com/zarafa/client/
or
http://www.zcp.at/supported/windows/latest/
I only found the zarafaclient-7.2.1-51992.msi in my archive, which seems not to be the latest.