[Sysadmins] cyrus-sasl2 pam mysql не аутентифицирует

[JaMm]

Здравствуйте!

В системе (altlinux server 4.0.1) установлены следующие пакеты
cyrus-imapd-2.3.11-alt1
MySQL-server-5.0.51-alt1
cyrus-sasl2-2.1.22-alt2
postfix-2.4.6-alt3
Пользователи берутся из mysql.
Привожу конфиги.
************************************************************************************************
pam.d/imap
#%PAM-1.0
auth     include        system-auth
account  include        system-auth

auth sufficient pam_mysql.so user=mail passwd=pass  host=localhost db=mail 
table=accountuser usercolumn=username passwdcolumn=password crypt=0
#logtable=log logmsgcolumn=msg logusercolumn=user loghostcolumn=host 
logpidcolumn=pid logtimecolumn=time

auth sufficient pam_unix_auth.so

account required pam_mysql.so user=mail passwd=pass host=localhost db=mail 
table=accountuser usercolumn=username passwdcolumn=password crypt=0
#logtable=log logmsgcolumn=msg logusercolumn=user loghostcolumn=host 
logpidcolumn=pid logtimecolumn=time

account  sufficient       pam_unix_acct.so
*************************************************************************************************
Таблицы в mysql созданы с помощью скриптов web-cyradm.
************************************************************************************************
sysconfig/saslauthd
OPTIONS="-a pam -n 0"
************************************************************************************************
стартую 
mysqld --log=log.log
service saslauthd start
делаю
# testsaslauthd -u test -p 123
0: NO "authentication failed"
# testsaslauthd -u test на test -p 123
0: NO "authentication failed"
# testsaslauthd -u cyrus -p pass
0: NO "authentication failed"

# mysql -u mail -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.0.51-log ALT Linux MySQL RPM
mysql> use mail;
Database changed
mysql> select * from accountuser;
+-----------+---------------+--------+-------------+
| username  | password      | prefix | domain_name |
+-----------+---------------+--------+-------------+
| cyrus     | M.QD4KWNL1YNo |        |             |
| test на test | 123           |        |             |
| test      | 123           |        |             |
| tst       |               |        |             |
+-----------+---------------+--------+-------------+

смотрим log mysql:
mysqld, Version: 5.0.51-log (ALT Linux MySQL RPM). started with:
Tcp port: 3306  Unix socket: mysql.sock
Time                 Id Command    Argument
080202  3:25:36       1 Connect     mail на localhost on mail
                      1 Init DB     mail
                      1 Query       SELECT password FROM accountuser WHERE 
username = 'test'
080202  3:25:38       1 Quit
080202  3:25:50       2 Connect     mail на localhost on mail
                      2 Init DB     mail
                      2 Query       SELECT password FROM accountuser WHERE 
username = 'test на test'
080202  3:25:52       2 Quit
080202  3:26:41       3 Connect     mail на localhost on mail
                      3 Init DB     mail
                      3 Query       SELECT password FROM accountuser WHERE 
username = 'cyrus'
                      3 Query       SELECT password FROM accountuser WHERE 
username = 'cyrus'
080202  3:26:43       3 Quit
080202  3:27:10       4 Connect     mail на localhost on
                      4 Query       select @@version_comment limit 1
080202  3:27:16       4 Query       SELECT DATABASE()
                      4 Init DB     mail
080202  3:27:25       4 Query       select * from accountuser
080202  3:29:05       4 Quit

смотрим messages
Feb  2 03:25:38 smtp saslauthd[30876]: do_auth         : auth failure: 
[user=test] [service=imap] [realm=] [mech=pam] [reason=PAM auth error]
Feb  2 03:25:52 smtp saslauthd[30881]: do_auth         : auth failure: 
[user=test на test] [service=imap] [realm=] [mech=pam] [reason=PAM auth error]
Feb  2 03:26:43 smtp saslauthd[30886]: do_auth         : auth failure: 
[user=cyrus] [service=imap] [realm=] [mech=pam] [reason=PAM auth error]


то есть pam mysql запрос к базе выполняет, но почему то аутентификация не 
проходит? все возможные how -to + /usr/doc + форумы и листы рассылки 
прочитал... Прошу помочь разобраться.
-- 
С уважением, Андрей Степнов,
администратор сахалинского сегмента корпоративной сети ДВО РАН