Hi Tony,
How is this been working for you? Any issues? How is sync with iphone/android?

I tried to use ZEG VM and authenticate to COS. btw: I kind of like the idea of keeping the mail separate from the clearos.

I was able to login with my clear user/password but got an error:
= <0x0x5633e96d06d0[NGImap4Client]: login=robert(pwd) socket=<NGActiveSocket[0x0x5633e9a74e20]: mode=rw address=<0x0x5633e9a74ec0[NGInternetSocketAddress]: host=localhost port=33062> connectedTo=<0x0x5633e96d08a0[NGInternetSocketAddress]: host=127.0.0.1 port=1143>>>
Feb 18 21:18:02 sogod [1821]: <0x5633e9684b70[SOGoMailAccount]:0> renewing imap4 password
Feb 18 21:18:02 sogod [1821]: [ERROR] <0x0x5633e9c86060[NGImap4ConnectionManager]> IMAP4 login failed:
host=127.0.0.1, user=robert, pwd=yes
url=imap://robert@127.0.0.1:1143/
base=(null)
base-class=(null))

I think this is telling me that I do not have an account on ZEG .... any idea on how to fix that?
In your solution creation of the user on Cos creates users in SOGO?
Thanks