[MlMt] FYI: Don't go to Big Sur just yet.

[Scott]

Hi MailMate users,

I put macOS 11 (Big Sur) on a spare laptop for testing and of all of my 
critical applications, only one crashes immediately:  MailMate.

As always, one should never put highly temperamental betaware on 
machines for critical work, so, in my case, it's no big deal as that 
laptop was sitting turned off for the last six months anyway.

Just trying to give the community a heads up so they don't do something 
they end up regretting.

Regards,

Scott