4.2 FolderSync Request and Redirect Response

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The following is the same request from the example described in section 4.1. In this example, configuration changes on the server have caused the "contoso.com" host to no longer be the optimal host for the user.

Request

 POST /Microsoft-Server-ActiveSync?Cmd=FolderSync&User=fakename&DeviceId=v140Device&DeviceType=SmartPhone HTTP/1.1
 Content-Type: application/vnd.ms-sync.wbxml
 MS-ASProtocolVersion: 14.0
 User-Agent: ASOM
 Host: Contoso.com
  
 <?xml version="1.0" encoding="utf-8"?>
 <FolderSync xmlns="FolderHierarchy:">
   <SyncKey>2</SyncKey>
 </FolderSync>

The server redirects the client to the "mail.contoso.com" host using an HTTP status code 451 and the X-MS-Location header.

 HTTP/1.1 451
 Date: Thu, 12 Mar 2009 20:16:22 GMT
 X-MS-Location: https://mail.contoso.com/Microsoft-Server-ActiveSync
 Content-Length: 0