[Dovecot] Dovecot Startup error on FreeBSD

[Dien Phan]

Hi,

I have installed latest Dovecot 1.0.13 on a FreeBSD 6.2 with XMail 
(www.xmailserver.org). It works OK except one thing: error on startup.
After each reboot there are lots of such error:

dovecot: Mar 28 08:54:38 Error: child 916 (login) returned error 89
dovecot: Mar 28 08:54:54 Error: imap-login: No authentication sockets found

When I restart dovecot by running startup script 
/usr/local/etc/rc.d/dovecot.sh restart the problem disappears. I have to 
manually restart dovecot after each reboot. Below is used conf file

$ dovecot -n
# 1.0.13: /usr/local/etc/dovecot.conf
log_path: /var/log/dovecot.log
info_log_path: /var/log/dovecot-info.log
protocols: imap
ssl_disable: yes
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable: /usr/local/libexec/dovecot/imap-login
mail_location: maildir:~/Maildir
dotlock_use_excl: yes
maildir_copy_with_hardlinks: yes
mail_plugins: antispam
imap_client_workarounds: delay-newmail outlook-idle netscape-eoh 
tb-extra-mailbox-sep
auth default:
   verbose: yes
   passdb:
     driver: checkpassword
     args: /var/MailRoot/bin/dovecot_xmail
   userdb:
     driver: static
     args: uid=vxmail gid=vxmail home=/var/MailRoot/domains/%d/%n 
allow_all_users=yes
   socket:
     type: listen
     master:
       path: /var/run/dovecot/auth-master
       mode: 384
       user: vxmail
plugin:
   antispam_signature: X-DSPAM-Signature
   antispam_trash: Trash
   antispam_spam: SPAM
   antispam_dspam_binary: /usr/local/bin/dspam
   antispam_dspam_args: --user;%u

I googled and found similar post at 
http://www.mail-archive.com/dovecot@dovecot.org/msg01793.html, 
http://www.mail-archive.com/dovecot@dovecot.org/msg01798.html and 
http://www.mail-archive.com/dovecot@dovecot.org/msg01831.html

but answers there don't meet my case. I don't use sql backend. And 
startup script doesn't delete /var/run/dovecot/ directory after Dovecot 
is started. After booting when error still there I have in this directory:

$ ls /var/run/dovecot
auth-master     dict-server     login           master.pid

If restart dovecot (working OK):
$ ls /var/run/dovecot
auth-master     auth-worker.960 dict-server     login           master.pid

As we see dovecot works when there appears a file named auth-worker.960 
(the number 960 changes each time it restarted).

Please help me to fix this. Thanks in advance.

Dien Phan