Ldap disk quota MTA option

Direct LDAP attribute name MTA options:  (LDAP attribute name)
The  MTA option names the user LDAP attribute used to set user disk quota, by default the   LDAP attribute. See also the  MTA option, which names an LDAP attribute storing a per-message quota (size limit).

By default, the value stored in the LDAP attribute named by  is assumed to have units of bytes. Suffix characters on the value allow units of other than bytes:  (kilobytes),   (megabytes), or   (gigabytes) are supported.

See also:
 * ldap_message_quota MTA Option
 * ldap_domain_attr_disk_quota MTA Option
 * defaultmailboxquota Store Option
 * Direct LDAP attribute name MTA options