My original post earlier today unfortunately does not allow editing after posting. So, I had to start a new thread. Unable to recover my Court initiated PDF documents that they sent to my Comcast email, synced with TB on this Mac Monterey system, I made a last ditch effort to recover them through my Comcast account online, going through their website. So, despite any administrative mischief that the Court predisposed me to suspect, sort of virtual "lawfare," I was able to recover those documents directly through my online account. However, this makes it less worthwhile to have a default email account - and considering that I also have Windows 10, which no longer supports its Mail app, careful research substantiated that TB was the best replacement. So, there is some kind of problem with TB if it either cannot retain these attachments, or it is subject to some third party who wants to corrupt them after they transmit them. Where is the problem, TB or the sender?