I currently have coexistence between Exchange 2007 and 2013. Sending and receiving email from Outlook is fine. I can receive email from internal and external on my WP8 phone but can only send to external email. I can not reply or send email to my internal Exchange 2007 users. I try to use Test-OutlookConnectivity but can't run the commands because it's ask for "ProbeIdentity". I couldn't find any documentation for it. Can anyone point me in right direction?
My setup: Exchange 2013 STd on Win2k12
John
John