Alertmanager can send to Postfix dashboard when probing is unsuccessful

pica-metrologie/vmalert-rules.yml

@@ -198,7 +198,7 @@ groups:
       summary: "Service down"
       description: "{{ $labels.instance }} is down for more than 2 minutes"
       # Redirect to HTTP or DNS dashboard based on vmagent job name
-      dashboard: '{{ if eq $labels.job "blackbox-http" -}}https://grafana.picasoft.net/d/8BOa8W47z/services-web?var-instance={{ $labels.instance }}{{- else if eq $labels.job "blackbox-dns" -}}https://grafana.picasoft.net/d/1twteMV7k/serveurs-dns?var-instance={{ $labels.instance }}{{- end -}}'
+      dashboard: '{{ if eq $labels.job "blackbox-http" -}}https://grafana.picasoft.net/d/8BOa8W47z/services-web?var-instance={{ $labels.instance }}{{- else if eq $labels.job "blackbox-dns" -}}https://grafana.picasoft.net/d/1twteMV7k/serveurs-dns?var-instance={{ $labels.instance }}{{- else if eq $labels.job "blackbox-mail" -}}https://grafana.picasoft.net/d/VB5CUrn7k/postfix{{- end -}}'
   - alert: PostfixRejection
     # As a test, alert when there is any rejection. If too much alert we will raise the threshold
     expr: rate(postfix_smtpd_messages_rejected_total[5m]) > 0