I tried to install nagios-herald on my test VM. I tried to configure herald to send emails. When I tried to send mail via command, It's working but not able to fetch/send with the proper formatted.
Below are commands for omegle your reference.
[root@localhost ~]# /usr/local/nagios-herald/bin/nagios-herald --env-file /usr/local/nagios-herald/test/env_files/nagios_vars.EXAMPLE --formatter=check_ping -r amit@example.com -y nagios@example.com --message-type email -u http://192.168.124.25 --trace
Please anyone suggest me for developerbook chatrandom configuration of nagios-herald with Nagios.