I imported some Thunderbird events into Google Calendar and, without my permission, it e-mails all the guests of the event. I now want to delete the event from Google Calendar, but I do not want it to re-send all those e-mails like it did last time. Can I delete the event? Or if I remove all the guests and then delete the event, will it still send the e-mails?
When you remove or otherwise change guests on an event, then save it, you should be prompted whether or not guests should receive a notification. Something similar to:
Simply click "Don't send" and none of the people you removed will get notifications. It should just be silently removed from their calendar.
There is a similar confirmation when you delete an event.