Auto mount a folder

[dalmate]

Hi, I have a question:
My boss want to auto mount every folder he created. Every one in my company don't need to accept share mail any more.
But when I code this function and run it, I received this soap document:

{"Body":{"Fault":{"Code":{"Value":"soap:Sender"},"Reason":{"Text":"permission denied: you do not have
 sufficient permissions"},"Detail":{"Error":{"Code":"service.PERM_DENIED","Trace":"btpool0-25:1245144899620
:ef914d2550d779d5","_jsns":"urn:zimbra"}}}},"Header":{"context":{"sessionId":[{"_content":"1473","id"
:"1473"}],"change":{"acct":"548438cc-8a53-4669-8f42-7ee36ccf410e","token":110},"notify":[{"modified"
:{"folder":[{"acl":{"grant":[{"d":"test1@ducla.zimbra.com","gt":"usr","perm":"r","zid":"548438cc-8a53-4669-8f42-7ee36c

cf410e"
}]},"f":"i","id":"265"}]},"seq":2}],"_jsns":"urn:zimbra"}},"_jsns":"urn:zimbraSoap

this is my request I created to request server mount his folder:

<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope"><soap:Header><context xmlns="urn
:zimbra"><userAgent xmlns="" name="ZimbraWebClient - FF3.0 (Win)" version="5.0.13_GA_2791.UBUNTU8"/> <sessionId xmlns="" id="1490"/><notify xmlns="" seq="2"/><account xmlns="" by="name">test1@ducla.zimbra
.com</account><format xmlns="" type="js"/><authToken xmlns="">0_50ec4dca3076d317be0f9c11c7cb41f6dd2d
c75a_69643d33363a37373532383537332d623433372d346235302d396330322d6132393535663230313566633b

6578703d3
1333a313234353134393732343833333b6169643d33363a36393333323136312d656131612d346566392d393534

382d3261646533653863343965373b747970653d363a7a696d6272613b
</authToken></context></soap:Header><soap:Body><CreateMountpointRequest xmlns="urn:zimbraMail"><link
 xmlns="" l="1" name="hello" zid="77528573-b437-4b50-9c02-a2955f2015fc" view="message" 

rid="270"/></CreateMountpointRequest
></soap:Body></soap:Envelope>

and notice: this request is done in test2-grantor, and grantee is test1