alertmanager.yml

global:
  # The smarthost and SMTP sender used for mail notifications.
  smtp_smarthost: 'smtp.gmail.com:25'
  smtp_from: 'xxxxx@gmail.com'
  smtp_auth_username: 'xxxxx@gmail.com'
  smtp_auth_password: 'pppppp'
route:
  receiver: team-X-mails

  routes:
  - match:
      service: 'InstanceDown'
    receiver: team-X-mails
receivers:
- name: 'team-X-mails'
  email_configs:
  - to: 'xxxxx@gmail.com'