Hi@all,
we are currently still using Kopano. Here, the connection of Outlook is solved via an OL connector. The server does not have an interface to connect Outlook directly like to an Exchange server.
This has several disadvantages. The connector saves all folders and contents locally in the PST file. This is a problem on a terminal server.
In addition, I cannot connect a third-party system such as the Pascom PBX directly. These expect a "real" Exchange or its interface.
How is this with Grammmunio?
with best
pixel