The most effective method for removing duplicates in Outlook is by utilizing the Regain Outlook Duplicate Cleaner Tool. This dependable software offers a quick and effective way to eliminate duplicate emails, contacts, calendar entries, tasks, and additional items from your Outlook PST, OST, and BAK files. It is compatible with all versions of Outlook, such as 2021, 2019, 2016, and Outlook 365. By using adjustable duplicate search parameters such as sender, subject, recipient, and date, you can effortlessly identify duplicates and eliminate them accurately. The intuitive interface of the tool allows it to be user-friendly for both novices and seasoned users. It functions effortlessly with sizable files and guarantees that your Outlook operates efficiently by tidying up your mailbox, enhancing performance, and conserving important storage space.