We've recently noticed a problem that started happening.
We have former employees who's emails are attached to another users mailbox so that they can get the emails the former employees. Because our policy states that their mailboxes must be removed and archived.
The users will turn into the former employee in Skype, and Exchange, even though the email used is the correct email. while in SharePoint if you hover over them it shows the proper user name but the contact is the other users information.
Is there anyway to fix this? we have tried applying patches and updates. It might have been happening before but recently we have had a lot of departures.
Also yes, removing the contacts from outlook, solves the issue for one user, but when its a whole company this becomes tedious and extremely time consuming and was tasked for finding a better solution.