systemd failure event publisher
$ sudo su -
# dnf -y install s-nail
# echo 'set v15-compat' >> /etc/s-nail.rc
# echo 'set mta=smtp://YOUR.MX smtp-auth=none' >> /etc/s-nail.rc
# # Customize failure-event file, and then:
# cp failure-event /etc/sysconfig/
# cp failure-event@.service /etc/systemd/system/
# systemctl daemon-reload
# # Test that it works
# systemctl start failure-event@systemd-logind.service
Once the test passes, integrate failure notifications into your systemd services like this:
[Unit]
OnFailure=failure-event@%n.service
Don't forget to systemctl daemon-reload after editing systemd units. If you're adding failure event publishing to 3rd party systemd units, it's probably best to use unit overrides instead of editing the stock files: systemctl edit THIRD_PARTY_SERVICE.