This post describes how you can remove a user from the User Information List (UIL) in a site collection from SharePoint 2010 and 2013. SharePoint stores user information in the UIL to extract data when this user is being searched by the people picker. The people...
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AD ImportMail address not syncing SharePoint 2013
I have SharePoint 2013 configured in a test environment that does not have a mail server installed. I could not use alerts or the mail task in workflows after I configured SharePoint 2013. This was caused because the User Profile Service Application was trying to sync...