Ruby 查询域名的 MX 记录 2015/12/14 57107 清华大佬耗费三个月吐血整理的几百G的资源,免费分享!....>>> require 'resolv' Resolv::DNS.open do |dns| mail_servers = dns.getresources("google.com", Resolv::DNS::Resource::IN::MX) mail_servers.each do |server| puts "#{server.exchange.to_s} - #{server.preference}" end end