Probléme Squirrelmail cyrus-imapd et postfix

[ousintkd@sunumail.sn]

Je viens d'installer et de configurer postfix
mon fichier main.cf:

# See /usr/share/postfix/main.cf.dist for a commented, more complete version

smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no

# appending .domain is the MUA's job.
append_dot_mydomain = no

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h

myhostname = localhost.localdomain
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = localhost.localdomain, localhost.localdomain, localhost
relayhost =
mynetworks = 127.0.0.0/8,192.168.1.0/24
#mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 51200000
recipient_delimiter = +
inet_interfaces = all
home_mailbox = Maildir/

en suite j'ai installer cyrus-imapd et squirrelmail mais lorsque j'essai
de connecter avec ce dernier j'ai l'erreure suivante:

ERROR: Could not complete request.
Query: CREATE "INBOX.Sent"
Reason Given: Permission denied