如何在Sinatra中维护使用Pony gem发送的电子邮件状态日志

gem install pony

require 'sinatra'
require 'pony'

# 配置Pony gem的SMTP设置
Pony.options = {
  :via => 'smtp',
  :via_options => {
    :address              => 'smtp.example.com',
    :port                 => '587',
    :user_name            => 'your_username',
    :password             => 'your_password',
    :authentication       => :plain,
    :enable_starttls_auto => true
  }
}

post '/send_email' do
  # 发送电子邮件
  Pony.mail(
    :to => 'recipient@example.com',
    :from => 'sender@example.com',
    :subject => 'Hello',
    :body => 'This is the body of the email.'
  )

  # 记录状态日志
  File.open('email_log.txt', 'a') do |file|
    file.puts "Email sent at #{Time.now}"
  end

  "Email sent successfully!"
end