4.4.1 Request

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The following example shows the initial FolderSync command request (section 2.2.1.5) sent from the client to the server. The folderhierarchy:SyncKey element (section 2.2.3.181.2) in the request is set to 0 (zero), because this is the first FolderSync command issued. Any subsequent FolderSync requests will contain the folderhierarchy:SyncKey value that was returned in the previous FolderSync response.

 <?xml version="1.0" encoding="utf-8"?>
 <FolderSync xmlns="FolderHierarchy">
   <SyncKey>0</SyncKey>
 </FolderSync>