I would like to connect book.me to my Kerio Connect email/caldav server. It uses a non-standard port, port 10443, as port 443 is used by another service. when configuring Apple Calendar, it allows me to specify the port. But when configuring book.me, it does not. I have tried adding :10443 to the end of the server address - it does not work.
please add support for customizing the port of the CalDAV server.