ruby-on-rails - Rails 4:调用 ActionMailer 时的 Net::ReadTimeout

Question

在开发模式下运行邮件程序时，出现以下错误:

Net::ReadTimeout in SchoolApplicationsController#create

这是获取超时的 Controller 方法

  def create
    @school_application = SchoolApplication.new(school_application_params)
     @school_application.program_cost =    @school_application.calculate_cost_to_charge(params[:school_application][:program], params[:school_application][:duration])
    if @school_application.save

      NotificationsMailer.send_application(@school_application).deliver
      redirect_to application_path(@school_application.id)
    else  
      Rails.logger.debug(@school_application.errors.full_messages)
          @school_application.errors.full_messages.each do |msg|
        flash.now[:error] = msg
      end
      render action: "new"
    end
  end

我肯定错误是由 NotificationsMailer 引起的打电话是因为什么时候
我将其注释掉，我不再收到错误消息。
这是我的邮件程序和设置:

class NotificationsMailer < ActionMailer::Base

  default :from => "from@slf.net"
  default :to => "nayr@slf.net"

  def send_application(application)
    @application = application 
    mail(:subject => "New Application")
  end
end

这是我的 environments/development.rb smtp设置:

Fls::Application.configure do
  # Settings specified here will take precedence over those in config/application.rb.

  # In the development environment your application's code is reloaded on
  # every request. This slows down response time but is perfect for development
  # since you don't have to restart the web server when you make code changes.
  config.cache_classes = false

  # Do not eager load code on boot.
  config.eager_load = false

  # Show full error reports and disable caching.
  config.consider_all_requests_local       = true
  config.action_controller.perform_caching = false

  # Don't care if the mailer can't send.

  # Print deprecation notices to the Rails logger.
  config.active_support.deprecation = :log

  # Raise an error on page load if there are pending migrations
  config.active_record.migration_error = :page_load

  # Debug mode disables concatenation and preprocessing of assets.
  # This option may cause significant delays in view rendering with a large
  # number of complex assets.
  config.assets.debug = true
  config.action_mailer.perform_deliveries = true
  config.action_mailer.raise_delivery_errors = true

  config.action_mailer.delivery_method = :smtp
  config.action_mailer.smtp_settings = {
  address:              'secure3309.hostgator.com',
  port:                 465,
  domain:               'slf.net',
  ssl: true,
  user_name:            ENV['slf_username'],
  password:             ENV['slf_password'],
  authentication:       'plain',
  enable_starttls_auto: true  }
end

当我写 ENV['slf_username']在 Rails 控制台中，我得到了正确的值。和密码一样。用户名的格式为 user@slf.net。这是正确的还是正确的格式只是“用户”并且域隐含于 domain范围？

Answer 1

看完这篇 post我再次查看了我的 smtp 设置并添加了

tls: true 

改变了
port: 465至 port: '465'因为我注意到大多数人把它写成一个字符串。也同样改变了字符串 "plain"到符号 :plain