dbmail-export(8) on Linux
The text 4efa6511e045, as Debian 6.0 (Squeeze), Debian 5.0 (Lenny) shipped it.
export a mailbox from the DBMail mailsystem to mbox format.
Flags it lists
-
-D -
-V -
-b -
-d -
-f -
-h -
-m -
-o -
-q -
-r -
-s -
-u -
-v