overquotastatus Message Store option enables tracking of user quota status, thus enabling quota enforcement before messages are enqueued in the MTA and thereby reducing the potential for MTA queues to fill up. When set, and a user is not yet over quota, but an incoming message pushes the user over quota, then the message is delivered, but the
mailUserStatus LDAP attribute is set (by the Message Store) to
overquota so no more messages will be accepted by the MTA.
Note that enbling the
overquotastatus Message Store option causes the
quotaoverdraft Message Store option to be enabled automatically.
The default value is: 0