Mail crashes in Big Sur

Mail crashes upon launch in Big Sur. Workaround?
Hola, how did you get there? I do not even succeed in installing Big Sur at all. Yes, I downloaded the Profile, did run the installation app, but there are only Catalina Updates offered to me, NO Big Sur yet… Do you have any idea?

Thank you ;-)
Big Sur was an option, and there was also "additional downloads - 10.15.
Same here. Already deleted the index and did a rebuild of the index, but still crashes on start. (actual MacBook Pro)

Had some moderate success in turning off all the accounts, deleting the index, starting Mail and slowly adding accounts back. But that only worked for a few hours before it crashed again.
I rebooted into Safe Boot, tested Mail there and it worked. Restarted normally, and Mail then worked and has been OK since.
I had this problem after installing beta 1 and I solved it by deleting ~/Library/mail*. There should be three of them.
Since I updated my OS to Big Sur, Mail is not working properly, the "Search" function does not work at all and "flagged" items are not synced with my other devices. I am so disappointed. I can't find anything now. How do I fix this?
Mail crashes in Big Sur
 
 
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