In my /var/log/maillog show this message:

NOQUEUE: SYSERR(apache): can not chdir(/var/spool/clientmqueue/): Permission denied

Permissions on dir:

drwxrwx--- 2 smmsp smmsp 36864 Jun 30 15:23 clientmqueue

If i change the permissions to 777 works normaly but is not safe and in other server works fine with the permissions 770.

Anybody have any idea?

Thanks,