<?xml version="1.0" encoding="utf-8"?> <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">  <s:Body>    <s:Fault>      <faultcode xmlns:a="http://schemas.microsoft.com/exchange/services/2006/types">a:ErrorServerBusy</faultcode>      <faultstring xml:lang="en-US">The server cannot service this request right now. Try again later.</faultstring>      <detail>        <e:ResponseCode xmlns:e="http://schemas.microsoft.com/exchange/services/2006/errors">ErrorServerBusy</e:ResponseCode>        <e:Message xmlns:e="http://schemas.microsoft.com/exchange/services/2006/errors">The server cannot service this request right now. Try again later.</e:Message>        <t:MessageXml xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types">          <t:Value Name="BackOffMilliseconds">149545</t:Value>        </t:MessageXml>      </detail>    </s:Fault>  </s:Body> </s:Envelope>
