I want to retrieve all Groups a specific user is member of. But it should include all Site Collections and in the best case also all Webapplications. If there are two groups in different Site Collections with the same name, that they should be listed twice.
The System is a SP2013 on premise installation.
I think that the Groups property of a user only returns the ones of the SiteCollection? Right?
Is there a better way than iterating all SiteCollections->Webs and so forth?