Mail is crashing on 10.12.2 beta 16C32f

I basically have a bricked AppleMail on Sierra 10.12.2 beta (16C32f). It crashes on launch.

Maybe related to a Mail plugin? I had the same problem, but when I deleted the plugin (MailButler in my case) Mail app launched again.

I don't have any plug-ins to my knowledge. Mail crashes before I could even select the Preferences option, so it's difficult to be certain. I certainly don't have MailButler.


Submitted as bug #29139626.

Mail is crashing on 10.12.2 beta 16C32f
 
 
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