Hello, I installed the ispConfig Plugins in roundcube as in this tutorial: https://www.howtoforge.com/tutorial/roundcube-installation-on-debian-8-jessie/ I configured an Remote User in ISPConfig and ticked the necessary permissions. In Roundcube Settings I get the Soap Error: Forbidden. I tried it with another User and Password but still no luck. I even gave the RemoteUser all the permissions in ISPConfig to check weather I forgot some. Still same Error. It seems to connect to the soap_url fine though (no could not connect to host Error). Did I miss something?