EWS Push Subscription using PHP
问题 Does anyone know how to respond to EWS (Exchange Web Services) Push Notifications using PHP. I have initiated the EWS Push Subscription but cannot seem to send the correct SOAP response (in order to keep the subscription alive) when EWS sends my service a SOAP notification. Taken from this page, I was under the impression that my SOAP response should be as follows: <s:Envelope xmlns:s= "http://schemas.xmlsoap.org/soap/envelope/"> <s:Body> <SendNotificationResult xmlns="http://schemas