mail-expire(1) on Linux
The text 71817ea5a880, as Debian 12 (Bookworm), Debian 11 (Bullseye) shipped it.
program to extract outdated messages from mbox files
Flags it lists
-
--delete -
--dry-run -
--keep -
--purge -
-T -
-U -
-X -
-c -
-d -
-k -
-l -
-n -
-p -
-t -
-u -
-v