Exchange Web Services (EWS) authentication strategy for OmniAuth

Install manually or using Bundler:

gem 'omniauth-ews'

Add :ews provider to omniauth builder:

use OmniAuth::Builder do
  provider :ews, :endpoint => "https://example.com/ews/exchange.asmx"
  # provider ...
end