==== Required information ====
- iRedMail version: 1.6.0
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): Mysql
- Linux/BSD distribution name and version: 5.8
- Related log if you're reporting an issue:
====

I have a few problems with my system and need your help , my company have many users so I code a php tool to import users direct to database from CSV file ,  the users can send and receive mail  ,but I can’t add the users to group mail  I can only add it to moderator group and I don’t know why

Here is my MySQL log /var/log/mysqld.log :

141205 13:43:42  mysqld ended

141205 13:43:43  mysqld started
141205 13:43:43  InnoDB: Started; log sequence number 9 325366241
141205 13:43:43 [Warning] Neither --relay-log nor --relay-log-index were used; so replication may break when this MySQL server acts as a slave and has his hostname changed!! Please use '--relay-log=mysqld-relay-bin' to avoid this problem.
141205 13:43:43 [Note] /usr/libexec/mysqld: ready for connections.
Version: '5.0.95-log'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  Source distribution
141205 13:48:08 [Note] /usr/libexec/mysqld: Normal shutdown

141205 13:48:08  InnoDB: Starting shutdown...
141205 13:48:09  InnoDB: Shutdown completed; log sequence number 9 325366241
141205 13:48:09 [Note] /usr/libexec/mysqld: Shutdown complete

141205 13:48:09  mysqld ended

141205 13:48:09  mysqld started
141205 13:48:09  InnoDB: Started; log sequence number 9 325366241
141205 13:48:09 [Warning] Neither --relay-log nor --relay-log-index were used; so replication may break when this MySQL server acts as a slave and has his hostname changed!! Please use '--relay-log=mysqld-relay-bin' to avoid this problem.
141205 13:48:09 [Note] /usr/libexec/mysqld: ready for connections.
Version: '5.0.95-log'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  Source distribution