Timeout error when executing MOVE to ##DavMailSubmissionURI##

[Furqan Shaikh]

Hi,
I am executing the following steps to create a meeting request:

- Create an appointment in your calendar folder (point 2)
- Create the Appointment in Drafts folder with a different URI
- set the http://schemas.microsoft.com/exchange/outlookmessageclass property
to "IPM.Schedule.Meeting.Request"
- set the DAV:contentclass property to "urn:content-classes:calendarmessage"
- set the urn:schemas:calendar:method property to "REQUEST"
- PROPPATCH (save) the meeting requests properties
- Attach any Attachment with PUT Request
- MOVE the item to ##DavMailSubmissionURI##

All the steps execute successfully except the last one (MOVE to
##DavMailSubmissionURI##). We are consistently getting "Operation timeout"
error when we submit the MOVE request. Even COPY method is giving the same
timeout error. Is there any setting on exchange to enable the sending from
the ##DavMailSubmissionURI## folder?

Any advice is greatly appreciated?

Thanks,
Furqan