There are many fast methods to remove duplicates from Outlook folders. I can suggest the best solution because I'm also using it. Try the TrustVare Outlook Duplicate Remover which... moreThere are many fast methods to remove duplicates from Outlook folders. I can suggest the best solution because I'm also using it. Try the TrustVare Outlook Duplicate Remover which can quickly remove duplicate Outlook files like emails, contacts, notes, tasks, calendar, etc, without losing original data. It will handle a large number of duplicate Outlook files without needing any other software on the PC. The software runs on all Windows OS versions like 11, 10, 8.1, 8, and 7. It will give you a preview option before final deletion, and you can try the free demo version before buying this tool. You don't need to do any technical skills to operate it.Visit here: https://www.trustvare.com/duplicate-remover/pst/ less