*change* changekey is not mandatory *fix* routing_type reordered (see https://blogs.msdn.microsoft.com/dhruvkh/2011/10/18/the-request-failed-schema-validation-but-why/ that order matters for EWS)
*change* changekey is not mandatory
*fix* routing_type reordered (see https://blogs.msdn.microsoft.com/dhruvkh/2011/10/18/the-request-failed-schema-validation-but-why/ that order matters for EWS)

ecederstrand/exchangelib