AD Sync is showing me the following error stopped-extension-dll-exception as a status and my last sync happened a few days ago. I checked event viewer noticed the following line in an error "The user account {EmailHidden} does not exist in the secinc.onmicrosoft.com directory. To sign into this application, the account must be added to the directory." Is there a way to find out what emai\account AD sync is looking for? I think I know but want to confirm it.