cool you get it works but you did some mistakes, I’m just explaining for the sake of other readers.
Please do not test on your real server the dev work of developers, or at least wait the confirmation of others
You should use virtualization if you want to help the development of nethserver, one VM gets a short time of life…for your server it could be embarrassing.
Concerning your issue, you installed sogo & sope by the command line, you missed nethserver-sogo that you installed probably after by nethforge and the software center. This former rpm is there to configure sogo.
BTW, thank for your interest in nethserver