framework:
   notifier:
     #chatter_transports:
     #    slack: '%env(SLACK_DSN)%'
     #    telegram: '%env(TELEGRAM_DSN)%'
     #texter_transports:
     #    twilio: '%env(TWILIO_DSN)%'
     #    nexmo: '%env(NEXMO_DSN)%'
     channel_policy:
       # use chat/slack, chat/telegram, sms/twilio or sms/nexmo
       urgent: ['email']
       high: ['email']
       medium: ['email']
       low: ['email']
     admin_recipients:
       - { email: admin@example.com }