Ruby on Rails SMTP发送邮件失败

Question

config.action_mailer.delivery_method = :smtp
  config.action_mailer.smtp_settings = {
    :address => "smtp.gmail.com",
    :port => "587",
    :domain => "gmail.com",
    :authentication => "plain",
    :user_name => "myusername@gmail.com",
    :password => "mypassword",
    :enable_starttls_auto => true
  }

class UserMailer < ActionMailer::Base
  default from: "myusername@gmail.com"
  def confirm(email)
    @message = "Thank you for confirmation!"
    mail(:to => email, :subject => "Registered")
  end
end

我输入UserMailer.confirm（“someone@example.org”）。在rails控制台中交付并发送出去。但我无法从目标邮箱收到任何邮件.... 设置中的Google帐户是我的个人google帐户，我使用相同的用户名和密码。