Christian Rößner wrote:
is it possible to ask Dovecot for a users quota by talking to the Dovecot server over TCP? I know about doveadm quota -u <user>, but I would like to know, if I can query for that over a network connection (on the Postfix ML they suggested writing a policy service that checks quota. Postfix is not always on the same server as Dovecot is).
Does the LMTP protocol give that information somehow? I am not so familiar with LMTP. Or some Unix-Socket to query that could also be configured as inet_listener?
LMTP only returns an error if you're already over quota.
You can query the quota of a specific mailbox via IMAP using GETQUOTAROOT: http://tools.ietf.org/rfc/rfc2087.txt
Several script languages provide helper functions for this:
perl: IMAP::Admin->get_quotaroot php: imap_get_quota ruby: Net::IMAP::MailboxQuota