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Processing message failed. Status: 800004005

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I'm using Thunderbird 60.5.3 on Windows 10 with Lightning. I've added a FastMail calendar account using CalDav:

https://www.fastmail.com/help/clients/thunderbird.html#calendar

I signed up for a Docker birthday event:

https://dockr.ly/sfbday6

Docker sent me a calendar event. I tried to accept the event in Thunderbird, and I selected my FastMail calendar. Thunderbird told me:

   Processing message failed. Status: 800004005

I can manually add events to the calendar without any problem.

I'm using Thunderbird 60.5.3 on Windows 10 with Lightning. I've added a FastMail calendar account using CalDav: https://www.fastmail.com/help/clients/thunderbird.html#calendar I signed up for a Docker birthday event: https://dockr.ly/sfbday6 Docker sent me a calendar event. I tried to accept the event in Thunderbird, and I selected my FastMail calendar. Thunderbird told me: Processing message failed. Status: 800004005 I can manually add events to the calendar without any problem.

All Replies (2)

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No, Docker had just created the event, and it generated the invitation for me from scratch.