How do I query GroupWise with the IDM driver so that I can determine if an email address has already been taken?
The GW driver has a special query that allows you to see if a proposed internet email address or gateway alias will cause a conflict. If there is no conflict, you will receive back a success status without an instance node. If there is a conflict, you will receive an instance for the record owning the address.
If there is a gateway alias with this value, you will receive the following. The attr data gives the name of the user to which the gateway alias belongs.