check_imap_quota(7) on Linux
The text c03acc8ae46e, as Debian 10 (Buster) shipped it.
connects to an IMAP account and checks the quota
Flags it lists
-
--critical -
--help -
--hires -
--hostname -
--mailbox -
--nossl -
--password -
--port -
--ssl -
--timeout -
--usage -
--username -
--verbose -
--version -
--warning