You can use CubexSoft Outlook Duplicate Remover Tool to remove duplicate items from Outlook. If you have a large number of duplicate items in their Outlook mailbox and want to remove them to free up space, this software is perfect for you. The software is capable of removing duplicate emails, contacts, calendars, and other items. The software is easy to use and comes with a simple and user-friendly interface. Read More: https://www.cubexsoft.com/outlook-duplicate-remover/