hacks/email-to-webhook

email_to_webhook

put it in /root/.forward:

|"/usr/bin/envdir /etc/environment.d /usr/local/bin/email_to_webhook"

Then:

mkdir -p /etc/environment.d
echo "https://hooks.slack.com/services/blah/blah/secretblah" > /etc/environment.d/SLACK_WEBHOOK_URL