[CLUE-Tech] Mozilla-mail backup?

[R. Savage]

We all know the merit of doing backups - saving files we can't afford to 
lose. Though largely ephemeral, some email is like that. When I tripped 
over the box the other day, it didn't do Mozilla-mail much good, and it 
stopped working. It's up again, but it left me wondering: is it possible 
to periodically save the to-ing and fro-ing of Mozilla-mail? Obviously, 
Mozilla-mail maintains its own saved folders of stuff - inbox, sent, 
drafts, etc, and it has the usual capability to export the bookmark 
file. That doesn't do one much good if Moz-mail itself goes toes-up.  I 
didn't find a menu item in Moz-mail that says "save folder x to your 
choice of locations", nor did I find a directory in /var or /lib marked 
"Mozilla-mail", nor anything in the "Help" file.

Any of the gurus (or at least non-newbies) out there figure out how to 
do this?

Dick Savage
Franktown