IMAIL also uses URLs to refer to containers. The notation used for a container is what you would expect: take a folder URL and drop everything after the rightmost slash. For example, the folder URL
imap://localhost/inbox/sysadmin/equipment
has the corresponding container URL
imap://localhost/inbox/sysadmin/
Note that this is different from the URL for the
sysadmin folder:
imap://localhost/inbox/sysadmin