Hi all, I'm very exciting about Thunderbird 91+, some very promising things are coming by the looks of it. I was just wondering if anyone knew what the plans for the auto detection of CalDAV and CardDAV settings were? Ultimately, what will Thunderbird try to do to detect these settings? AddressBook and Calendar have been part of the autoconfig documentation for some time as per https://wiki.mozilla.org/Thunderbird:Autoconfiguration:ConfigFileFormat but currently aren't implemented. Would this be where these settings are detected from? I'd really like to configure address books and calendars in this way, it would be a great next step to get clients away from the Exchange/Outlook/Office365 and go back to a decent, on premises, distributed set up which I know lot of IT professionals and home techies prefer to use. Thanks,