health-msmtp

Description

This Ansible role sends periodic health check emails using msmtp to verify that your mail transport agent is operational. It deploys a simple script and hooks it into a systemd service and timer, with failure notifications sent via Telegram.

Overview

Optimized for Archlinux, this role creates the required directory structure, installs and configures the health-check script, and integrates with the systemd-notifier-telegram role. It uses the systemd-timer role to schedule regular checks based on your customizable OnCalendar setting.

Purpose

The health-msmtp role ensures that your mail transport system stays available by sending a test email at defined intervals. If the email fails, a Telegram alert is triggered, allowing you to detect and address issues before they impact users.

Features

Directory & Script Deployment: Sets up health-msmtp/ and deploys a templated Bash script to send test emails via msmtp.
Systemd Service & Timer: Provides .service and .timer units to run the check and schedule it automatically.
Failure Notifications: Leverages systemd-notifier-telegram to push alerts when the script exits with an error.
Configurable Schedule: Define your desired check frequency using the on_calendar_health_msmtp variable.
Email Destination: Specify the recipient via the users.administrator.email variable.