Hello,
in the
/opt/omd/sites/mysite/etc/mail.rc
there is no server name/ip, nor port, nor user/password, no “from address”, so this file is not about SMTP configuration.
How can it be set up to forward emails?
in /etc/ there is no such file
in /home/linuxuser/ there is no ~/etc/mail.rc
What file are you talking about?