openproject/config/email.yml.example

# Outgoing email settings

production:
  delivery_method: :smtp
  smtp_settings:
    address: smtp.example.net
    port: 25
    domain: example.net
    authentication: :login
    user_name: "redmine@example.net"
    password: "redmine"
  
development:
  delivery_method: :smtp
  smtp_settings:
    address: 127.0.0.1
    port: 25
    domain: example.net
    authentication: :login
    user_name: "redmine@example.net"
    password: "redmine"