doveadm-altmove(1) on Linux
The text dfee1bd33a1a, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster) shipped it.
Move matching mails to the alternative storage (dbox-only)
Flags it lists
-
-A -
-D -
-F -
-S -
-o -
-r -
-u -
-v