[root@adplan-test /]# dovecot -n
# 1.0.7: /etc/dovecot.conf
protocols: imap pop3
listen: *
login_dir: /var/run/dovecot/login
login_executable(default): /usr/libexec/dovecot/imap-login
login_executable(imap): /usr/libexec/dovecot/imap-login
login_executable(pop3): /usr/libexec/dovecot/pop3-login
mail_executable(default): /usr/libexec/dovecot/imap
mail_executable(imap): /usr/libexec/dovecot/imap
mail_executable(pop3): /usr/libexec/dovecot/pop3
mail_plugin_dir(default): /usr/lib/dovecot/imap
mail_plugin_dir(imap): /usr/lib/dovecot/imap
mail_plugin_dir(pop3): /usr/lib/dovecot/pop3
auth default:
  passdb:
    driver: sql
    args: /etc/dovecot-mysql.conf
  userdb:
    driver: sql
    args: /etc/dovecot-mysql.conf
[root@adplan-test /]# cat /etc/dovecot-mysql.conf | grep -v "#"
driver = mysql
   connect = host=localhost dbname=postfix user=postfix password=postfix
driver = mysql
connect = host=localhost dbname=postfix user=postfix password=postfix
default_pass_scheme = PLAIN
password_query = SELECT userid as user, password, home as userdb_home, uid as userdb_uid, gid as userdb_gid FROM users WHERE userid = '%u'
user_query = SELECT home, uid, gid FROM users WHERE userid = '%u'
[root@adplan-test /]#