[CentOS] postfix on centos 7

Phil Perry
Thu, 06 Sep 2018 19:42:35 -0000

On 06/09/18 20:15, 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

How are you trying to send mail? Is it by chance through a web based
application?

If so, you may need to set the SELinux boolean httpd_can_sendmail.

Otherwsie, check/restore default SELinux labelling for /etc/postfix/main.cf