Belt and suspenders...

I have no idea how it happened, but the folder associated with a job I did last December was nowhere to be found when I went looking for it. I suspect I may have accidentally deleted it in the heat of the moment, but that didn't help me solve the problem.

Fortunately, I was able to recover all relevant files from both incoming and outgoing emails.

I should probably add something about this to my long-term to-do items concerning my computer setup.

Nice to know a recovery was possible, though.