@andre What happened was that it found the server (of my userid domain) but no mail, calendar or contacts. Your first post put me on the right track. I had to disable both “Look up configuration with email domain” and “Exchange Web Services autodiscovery”, then click on “Advanced Options” and enter “gmail.com” as the “Server”. I had to enter my password under “Look up for a CalDAV/CardDAV server”, but still had to login to Google via a pop-up to complete Oauth2 configuration. Now everything seems to be working as advertized. Thanks for your help!