To get more out of Google Calendar, you need to integrate it with the calendar that you are using anyway. If you are using Google Calendar across the devices and want to set up a sync between Thunderbird and Google Calendar, you are in the right place. However, you may want to keep Thunderbird lightning calendar as an Outlook alternative. No doubt Google Calendar is among the best calendaring software used till today.

One good thing about the Lightning plugin is that it allows you to add another calendar application like Google Calendar with the read-only access. If you are a Thunderbird user, you would be well versed with its popular add-on called lightning which is used to organize and manage your import events, deadlines, meetings and holidays in a calendar that is completely integrated with your Thunderbird email. It comes with numerous add-ons that are used to extend its functionality and appearance. This would make sense in my understanding (how should the server know about the Thunderbird settings?), but stange thing is that when I tested it with my colleague (is on the NC server) he only got my client email (no NC invitation).Thunderbird is a popular free email client software that comes with great feature. When I invite someone with a google calendar he only get’s the client mail… (I do not really get the logic/reason behind that) What seems to work best at the moment to activate “Prefer client-side email scheduling” in Thunderbird for the calendars, but when I send an invitation to persons that are not on our Nextcloud instance (but on the same ActiveDirectory repository without access to NC) they get two emails (server and the one from my client).

What is the recommended way? I read a lot in the forum and the Issues in github but no solution seems to work without problems (I tested it quite intensively with a colleague). We stumbled into big problems with the invitation feature. I’ve installed the calendar in an environment with Windows, Linux, macOS, iOS, Android client users.

Thunderbird lightning google calendar