About alertmanager.yml (email_configs and custom subject)

[Jseb Tarot]

Hello,

I have a question about alertmanager configuration section email_configs:

This configuration works for now:

receivers:

  - name: "1234...."

    email_configs:

   - to: 'xx...@yyyy.gg'
      from: 'xx...@yyyy.gg'
      smarthost: mailhost.xxxxx.yy:25

      send_resolved: true

But if i add this fields headers for addding template subject  it' working ?

receivers:

  - name: "1234...."

    email_configs:

   - to: 'xx...@yyyy.gg'
      from: 'xx...@yyyy.gg'

      headers:

          subject: [{{ .GroupLabels.severity }}] {{ $labels.my_tag }} {{ $labels.instance }} blablabla

      smarthost: mailhost.xxxxx.yy:25

      send_resolved: true

Thanks,

Regards,

JsT