chewmail(1) on Linux
The text 4accfc4b4e85, as Debian 12 (Bookworm), Debian 11 (Bullseye) shipped it.
mail archiver
Flags it lists
-
--date -
--days -
--delete-immediately -
--dry-run -
--help -
--only-read -
--output-box -
--preserve-timestamp -
--quiet -
--verbose -
--version -
-D -
-R -
-V -
-d -
-h -
-n -
-o -
-q -
-v