On 06.09.2018 21:15, Larry Martell wrote: > When I try and send mail I see this in the maillog: > > Sep 6 11:59:48 postfix/sendmail[11059]: fatal: open > /etc/postfix/main.cf: Permission denied > > But /etc/postfix/main.cf is world readable: > > $ ls -l /etc/postfix/main.cf > -rw-r--r--. 1 root root 27176 Jun 9 2014 /etc/postfix/main.cf > do a ls -alZ /etc/postfix/main.cf very probale is invalid SElinux File context is should show -rw-r--r--. root root system_u:object_r:postfix_etc_t:s0 /etc/postfix/main.cf