I am looking for an approach to monitor that messages sent by my application are successfully delivered to email/whatsapp/telegram, etc.
I've searched KB and found nothing to help me except the email delivery monitor.
So, I can create an application which checks if the message is there. But what is a proper way to send this data to site24x7? I want to see it in reports and make alerting aware of delivery failures.
A naive approach I can figure out by myself is to implement a nagios plugin. But I somehow feel it is a wrong way.