The mail app is crashing with :
Application Specific Information:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[EWSMessageType IsOutOfDate]: unrecognized selector sent to instance 0x13b9a9a50'
terminating with uncaught exception of type NSException
abort() called
MacBook, macOS 11.6
Seems you have company, is yours an M1 MacBook?
Start up a Mac with Apple silicon in safe mode
On your Mac, choose Apple menu > Shut Down.
After your Mac shuts down, wait 10 seconds.
Press and hold the power button on your Mac until the startup options window appears showing available startup disks and Options.
Select a startup disk.
Press and hold the Shift key, click Continue in Safe Mode, then release the Shift key.
To leave safe mode, restart your Mac normally, without pressing and holding any keys during startup.
If still no good Disconnect from the Internet, then start Mail, look for the last rec'd eMail.
Does Mail crash if no internet?
Quit Mail & login to your WebMail in a Browser, if possible delete any later eMails there after the last rec'd one on the Mac.
If you have no POP accounts & they’re all IMAP accounts then in Mail’s Mailbox menu choose Rebuild.
[EWSMessageType IsOutOfDate]
