user = xxxxxxxxxx
password = xxxx
dbname = mail
query = SELECT CONCAT(SUBSTRING_INDEX(email,'@',-1),'/',SUBSTRING_INDEX(email,'@',1),'/') FROM users WHERE email='%s'
hosts = localhost

mysql> select * from users;
+-------------+---------------+
| email       | password      |
+-------------+---------------+
| me@oxez.net | orX1YeXjiuYMA |
+-------------+---------------+
1 row in set (0.00 sec)

mysql> select * from domains;
+----------+
| domain   |
+----------+
| oxez.net |
+----------+
1 row in set (0.00 sec)