[Exim] Exim+Cyrus and quota

I am a problem with usage of quota in cyrus and Exim

This is my exim configuration for cyrus deliver:

######################################################################
# TRANSPORTS CONFIGURATION #
######################################################################

local_delivery_cyrus:
driver = pipe
delivery_date_add
envelope_to_add
command = "/usr/cyrus/bin/deliver ${local_part}"
return_path_add
current_directory = /var/imap
log_fail_output
prefix = ""
suffix = ""
user = cyrus
group = mail


######################################################################
# DIRECTORS CONFIGURATION #
######################################################################


ldap:
driver = aliasfile
search_type = ldap
expand
queries = "ldap:://adonis.paris.ipsight.com/dc=ipsight, dc=com?mailservername?sub?(uid=${local_part})"

transport = local_delivery_cyrus


When I send an email to a full mailbox, I got an error, what does I need to do

my /etc/imapd.conf file
configdirectory: /var/imap
partition-default: /var/spool/imap
admins: admincyrus
allowanonymouslogin: no
quotawarn: 90


tail -f /var/log/exim_mainlog

2000-07-26 14:30:31 13HQKK-00061a-00 == touleau@??? <noc@???> T=remote_smtp defer (-44): retry time not reached for any host
2000-07-26 14:32:43 13HQMd-00062l-00 <= root@??? H=evectra.paris.ipsight.com [192.168.100.30] U=root P=esmtp S=3926 id=E13HQLI-0005mq-00@???
2000-07-26 14:32:43 13HQMd-00062l-00 == user1ac@??? T=local_delivery_cyrus defer (0): Child process of local_delivery_cyrus transport returned 75 (could mean temporary error) from command:/usr/cyrus/bin/deliver
2000-07-26 14:32:56 13HQMq-00062t-00 <= root@??? H=evectra.paris.ipsight.com [192.168.100.30] U=root P=esmtp S=3926
id=E13HQLV-0005mu-00@??? 2000-07-26 14:32:56 13HQMq-00062t-00 => user2ac<user2ac@???> D=ldap T=local_delivery_cyrus 2000-07-26 14:32:56 13HQMq-00062t-00 Completed