When traveling, one often encounters captive WiFi portals (Deutsche Bahn mostly, in my case). Because these often somehow provide their own custom certificate, DAVdroid correctly produces a warning notification about this.
I’m not sure whether it’s just me, but that notification can not be swiped away. I have to click on in, scroll down and click “Reject” to make it go away. Of course, I never want to accept such a cert for one of the calendars or contact syncs that I have configured in DAVdroid.
I wonder whether this could be automated somehow. Maybe with a general setting like “silently reject unknown cert’s”, which might also require a special settings entry like “review rejected cert’s”? Or with a UX change to enable swiping such a notification away?