gistfile1.txt

$ ruby22 -v -rresolv -rpp -e "pp Resolv::DNS.open { |dns| dns.getresources('google.com', Resolv::DNS::Resource::IN::MX) }"
ruby 2.2.4p230 (2015-12-16 revision 53155) [x86_64-darwin15]
[#<Resolv::DNS::Resource::IN::MX:0x007fdbde0073e8
  @exchange=#<Resolv::DNS::Name: alt3.aspmx.l.google.com.>,
  @preference=40,
  @ttl=582>,
 #<Resolv::DNS::Resource::IN::MX:0x007fdbde006498
  @exchange=#<Resolv::DNS::Name: alt1.aspmx.l.google.com.>,
  @preference=20,
  @ttl=582>,
 #<Resolv::DNS::Resource::IN::MX:0x007fdbde005548
  @exchange=#<Resolv::DNS::Name: alt4.aspmx.l.google.com.>,
  @preference=50,
  @ttl=582>,
 #<Resolv::DNS::Resource::IN::MX:0x007fdbde0045f8
  @exchange=#<Resolv::DNS::Name: alt2.aspmx.l.google.com.>,
  @preference=30,
  @ttl=582>,
 #<Resolv::DNS::Resource::IN::MX:0x007fdbde00fa48
  @exchange=#<Resolv::DNS::Name: aspmx.l.google.com.>,
  @preference=10,
  @ttl=582>]