I'm trying to create a new task list folder as follows:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Header>
<context xmlns="urn:zimbra">
<authToken>0_febaefed3...</authToken>
<sessionId id="123456"/>
<account by="name">email@domain.com</account>
</context>
</soapenv:Header>
<soapenv:Body>
<CreateFolderRequest>
<folder name="new folder name" view="task"></folder>
</CreateFolderRequest>
</soapenv:Body>
</soapenv:Envelope>

I get a "unknown document: CreateFolderRequest" error. Any ideas?

Thanks, Brian