Hi, I have the following error, any help? imap(user4): Error: quotactl(Q_GETQUOTA, /dev/mapper/VolGroup-lv_root) failed: Permission denied The system as a whole is composed of: dovecot-2.0.14-1_130.el6.x86_64 openldap-servers-2.4.19-15.el6_0.2.x86_64 postfix-2.6.6-2.1.el6_0.x86_64 mailscanner-4.84.3-1.noarch spamassassin-3.3.1-2.el6.x86_64 centos 6 2.6.32-71.29.1.el6.x86_64 #1 SMP Mon Jun 27 19:49:27 BST 2011 x86_64 x86_64 x86_64 GNU/Linux # 2.0.14: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-71.29.1.el6.x86_64 x86_64 CentOS Linux release 6.0 (Final) auth_username_format = %Lu disable_plaintext_auth = no mail_location = maildir:~/Maildir mail_plugins = " quota" mbox_write_locks = fcntl passdb { driver = pam } plugin { quota = fs:User quota quota_rule = *:storage=10M quota_rule2 = Trash:storage=+1M quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=10%% quota-warning 10 %u } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { user = vmail } user = dovecot } ssl_cert =