New certificate does not have dav as it’s SAN:
Am I missing something or there was no reply to this topic?
Anyway, the error seems to be away, right? At least Thnderbird is not complaining any longer.
Regards,
Carlos Dourado
They quickly changed it to let’s encrypt, which is mediocre cause it’s different that real runbox.com cert. Because runbox.com cert is not wildcard, they probably can’t change it so easily now