Не стартует dovecot

Уважаемое комюнити, подскажите в чем может быть проблема...в syslog dovecot пишет следущее:

Aug 19 23:36:57 server init: dovecot main process (715) terminated with status 89


и больше ничего нет...


вот конфиг довекота:

#base_dir = /var/run/dovecot
protocols = imap pop3
disable_plaintext_auth = no
shutdown_clients = yes
log_path = /var/log/dovecot
info_log_path = /var/log/dovecot.info
log_timestamp = «%Y-%m-%d %H:%M:%S »
ssl_disable = yes
login_dir = /var/run/dovecot/login
login_chroot = yes
login_user = dovecot
login_greeting = Dovecot ready.
mail_location = maildir:/home/vmail/%d/%n
mmap_disable = no
valid_chroot_dirs = /var/spool/vmail
protocol imap {
login_executable = /usr/lib/dovecot/imap-login
mail_executable = /usr/lib/dovecot/imap
}
protocol pop3 {
login_executable = /usr/lib/dovecot/pop3-login
mail_executable = /usr/lib/dovecot/pop3
pop3_uidl_format = %08Xu%08Xv
}
auth_executable = /usr/lib/dovecot/dovecot-auth
auth_verbose = yes
auth default {
mechanisms = plain digest-md5
passdb passwd-file {
args = /etc/dovecot/passwd
}
userdb passwd-file {
args = /etc/dovecot/users
}
user = root
}


а даже когда пытаюсь запускать скрипт для создания пароля юзера на ящик говорит что не нашел mkpasswd

вот скрипт создания пароля

mkpasswd --hash=md5 $2 > /tmp/hash
echo «$1:`cat /tmp/hash`» >> /etc/dovecot/passwd

-------------------

dpkg -l dovecot\*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-======================-======================-============================================================
un dovecot <none> (no description available)
ii dovecot-common 1:1.2.15-3ubuntu2.1 secure mail server that supports mbox and maildir mailboxes
ii dovecot-imapd 1:1.2.15-3ubuntu2.1 secure IMAP server that supports mbox and maildir mailboxes
ii dovecot-pop3d 1:1.2.15-3ubuntu2.1 secure POP3 server that supports mbox and maildir mailboxes