Hello, All!

I'm working in x64 Ubuntu Server 8.04, and have very strange problem with Postfix + MySQL. I'm install and config Postfix by this HowTo: Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Ubuntu 8.04 LTS) | HowtoForge - Linux Howtos and Tutorials

All seems like a works:

Code:
# netstat -tap 

tcp        0      0 localhost:10024         *:*                     LISTEN      4908/amavisd (maste
tcp        0      0 localhost:10025         *:*                     LISTEN      13043/master
tcp        0      0 localhost:mysql         *:*                     LISTEN      10152/mysqld
tcp        0      0 *:www                   *:*                     LISTEN      5699/apache2
tcp        0      0 example.com:domain          *:*                     LISTEN      4849/named
tcp        0      0 localhost:domain        *:*                     LISTEN      4849/named
tcp        0      0 *:smtp                  *:*                     LISTEN      13043/master
tcp        0      0 localhost:953           *:*                     LISTEN      4849/named
tcp6       0      0 [::]:imaps              [::]:*                  LISTEN      5427/couriertcpd
tcp6       0      0 [::]:pop3s              [::]:*                  LISTEN      5461/couriertcpd
tcp6       0      0 [::]:pop3               [::]:*                  LISTEN      5441/couriertcpd
tcp6       0      0 [::]:imap2              [::]:*                  LISTEN      5407/couriertcpd
tcp6       0      0 [::]:domain             [::]:*                  LISTEN      4849/named
I'm put all info in to mysql tables, configure *.cf-files, clam, antispam etc

But postfix work very strange (not create mail folder, only receive mail's and so one). After long debug, i'm understand, that problem in mysql query from *.cf files in %s variable (Postfix manual - mysql_table(5)). In this variable, in this situation, must be e-mail address of e-mail recipient (eg: admin@example.com), But...

If I'm write in mysql-virtual_mailboxes.cf

Code:
query = SELECT CONCAT(SUBSTRING_INDEX(email,'@',-1),'/',SUBSTRING_INDEX(email,'@',1),'/') FROM users WHERE email = '%s'
in mysql log file I see, that %s = example.com

But, if I'm write (only for test of course ):

Code:
query = SELECT '%s'
I'm see in %s place my admin@example.com

I'm really don't understand, whats happen, and why in the same place I have different results...

Any ideas?..