I have an android user who's contacts got super-duplicated...he has multiple hundred copies of every contact, over 350,000 total. I am not able to manipulate the contacts at all in outlook, the client freezes and crashes when you try to do anything. I'm hoping somebody knows of a powershell command or some way to manipulate the mailbox on the server side, and delete all of his contacts?
I found reference to a powershell string:
search-mailbox -identity USERNAME -searchquery kind:contacts -deletecontent
but it errors out saying it doesn't recognize the cmdlet "search-mailbox" - might be part of exchange 2010 and not available in 2007?