The ContentOwner parameter specifies the e-mail address of the person to whom this content belongs. This parameter is necessary ...

The ContentOwner parameter specifies the e-mail address of the person to whom this content belongs. This parameter is necessary for any content that you expect to move to an Exchange server and must match the proxy address of an existing AD user. Example: Mike Danseglio/contoso@contoso, [email protected].  The default behavior is that the content owner for each item will be specified as .