While I am checking the posible reason that the php mail() does not work in my fc3 system, I found the following settings: # ls -lZ /usr/sbin/send* lrwxrwxrwx root root user_u:object_r:sbin_t /usr/sbin/sendmail -> /etc/alternatives/mta -rwxr-sr-x root smmsp system_u:object_r:sbin_t /usr/sbin/sendmail.sendmail and all files in /etc/alternatives/ show either user_u:object_r:etc_t or root:object_r:etc_t Are these settings correct? Do I need to run restorecon on them? or on all folders in the system? Thanks! Hongwei Li