Hi,

I use Dovecot 2.3.9.2 as IMAP proxy for other mail server and configure it with imapc_host/imapc_port/imapc_user options. All works fine exclude quota information.

Although my IMAP server supported quota Dovecot does not relay it to users.

As I read in docs/MailboxFormat.imapc.txt in Dovecot v2.2.30+ there is a way to relay quota data to end users:

Quota

Using the "imapc" quota backend allows asking for the quota from remote IMAP server (v2.2.30+). By default it uses GETQUOTAROOT INBOX for getting the quota. There are also two parameters that can be used to control how the quota is looked up:

• box=<mailbox>: Use GETQUOTAROOT <mailbox>
• root=<name>: Use GETQUOTA <name>

For example:

---%<------------------------------------------------------------------------- plugin { quota = imapc:root=User Quota } ---%<-------------------------------------------------------------------------

The above example is not clear. Please advise how to configure Dovecot in IMAP proxy mode with quota support.