Connection to exchange web services with NTML auth

ews_ntml.rb

# https://github.com/macks/ruby-ntlm
require 'ntlm/http'
require 'open-uri'
require 'net/https'

http = Net::HTTP.new(host, 443)
http.use_ssl = true
http.verify_mode = OpenSSL:SSL::VERIFY_NONE

request = Net::HTTP::Get.new('/ews/Services.wsdl')
request.ntlm_auth(user, domain, pwd)
response = http.request(request)
puts response.body