Ruby / Rails :: devise mailer setttings #RoR

DeviseMailerSetttings1.rb

  config.action_controller.allow_forgery_protection = false
  config.action_mailer.default_url_options = { :host => 'DOMAIN.COM' } 
  config.action_mailer.perform_deliveries = true
  config.action_mailer.delivery_method = :smtp
  config.action_mailer.smtp_settings = {
    :enable_starttls_auto => true,
    :address => "smtp.gmail.com",
    :port => 587,
    :domain => "gmail.com",
    :authentication => :login,
    :user_name => "USER@DOMAIN.COM",
    :password => "PASSWORD",
}