AlertManager is not sending alert emails

[Madhu Kuriti]

Hi,

My alertmanager email config (below) is not working, could you share a sample(redacted) that works for you.

  global:

    smtp_smarthost: mail.abcxyz.com

    smtp_from: alertm...@abcxyz.com

    resolve_timeout: 5m

  route:

    group_wait: 30s

    group_interval: 5m

    repeat_interval: 12h

    receiver: default

    routes:

    - match:

        alertname: KubeNodeNotReady

        severity: warning

      repeat_interval: 5m

      receiver: team-emaillist

  receivers:

  - name: default

  - name: deadmansswitch

  - name: team-emaillist

    email_configs:

    - to: use...@abcxyz.com

[Brian Candler]

First: change "receiver: default" to "receiver: team-emaillist".  This will check whether the SMTP part is working properly, as all alerts should be sent out.

Then start adding some matching routes.  The route you have given will match only alerts which have both alertname: KubeNodeNotReady *and* severity: warning (with lower-case "w")