# File lib/action_mailer/log_subscriber.rb, line 12
def deliver(event)
  info do
    if exception = event.payload[:exception_object]
      "Failed delivery of mail #{event.payload[:message_id]} error_class=#{exception.class} error_message=#{exception.message.inspect}"
    elsif event.payload[:perform_deliveries]
      "Delivered mail #{event.payload[:message_id]} (#{event.duration.round(1)}ms)"
    else
      "Skipped delivery of mail #{event.payload[:message_id]} as `perform_deliveries` is false"
    end
  end

  debug { event.payload[:mail] }
end

# File lib/action_mailer/log_subscriber.rb, line 38
def logger
  ActionMailer::Base.logger
end

# File lib/action_mailer/log_subscriber.rb, line 28
def process(event)
  debug do
    mailer = event.payload[:mailer]
    action = event.payload[:action]
    "#{mailer}##{action}: processed outbound mail in #{event.duration.round(1)}ms"
  end
end