Mail Quota ?

[BeNe]

Hello community,

i tested to set a Mail Qouta in Postfix for some hardcore user
But how can i do that ? I saw these lines in the mail.cf

Code:

#
# Quota support; activate, if avaible/used
#

virtual_create_maildirsize     = yes
virtual_mailbox_extended       = yes
virtual_mailbox_limit_maps     = mysql:/etc/postfix/mysql_virtual_mailbox_limit_maps.cf
virtual_mailbox_limit_override = yes
virtual_maildir_limit_message  = "The user you're trying to reach is over mailbox quota."
virtual_overquota_bounce       = yes

But there is no
'/etc/postfix/mysql_virtual_mailbox_limit_maps.cf'
and there is also no Option in the GUI to set a limit for each Mailbox.

Is this feature no yet available ?

And by the way, why is there

Code:

MTA_SASLDB_LOCAL_DOMAIN = isp-control.net

set in my /etc/ispcp/ispcp.conf ?