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I receive an invitation to an event via email.

I use thunderbird and accept the invitation.

I use tine20 for my calendar.

I can see the event in my calendar.

But the sender does not see that I accepted the event.

I have no clue how to debug this.

What could be wrong?

I use thunderbird 52.8.0

AFAIK the sender uses outlook for his calendar.

guettli
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1 Answers1

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If you have multiple email addresses setup in Thunderbird you could be experiencing a problem where the email to accept the invite is being sent using a different address, thus they aren't seeing the accept in their calendar.

https://support.mozilla.org/en-US/questions/1206863

You may also want to try running Thunderbird 60 (newest version) as some of these problems are considered bugs - it's hard to tell if they have been fixed since there is a large chain of duplicates in their bug tracker. (source)

Download for the latest version of Thunderbird is on their homepage - extracting and running that version should load the same settings as your existing installation. For safety you can package up your current settings in ~/.thunderbird before using it.

Kristopher Ives
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