Recover "deleted" junk mail
I wanted to move some e-mails from one folder to another. Because the e-mails were in a subfolder of a folder mail wouldn't allow them to be moved directly so I thought I'd just temporarily dump them into the junk folder and then move from there. Oops, bad idea. When I opened the junk folder I saw the e-mails being systematically deleted one by one. I looked in my mail trash folder and they we're there. I couldn't find them anywhere in any mail folder.
I don't knowingly have any automatic deletion of junk mail option set so I have no idea what happened. But, I thought I'll just go to Time machine and open up yesterday's mail to get the deleted e-mail messages back. Alas, I can't find any reference to mail in Time machine.
I'm looking for suggestions on how to get the e-mails back.
For reference I'm using Mail on an iMac running Big Sur 11.7 and Mail 14.0 (3654.120.0.1.13)