I see, that sucks. Thanks for the quick responses! I did purchase add-on modules for customization, widgets and others (For FreeScout). So far I'm liking the cloudron platform.
Great work!
Also a useful thread on the subject of ports and autoconfig/autodiscover:
https://forum.cloudron.io/topic/1296/add-dns-dav-registring/4?_=1595212232880
