Use the SysInfoTools Office 365 Backup Tool to eliminate duplicate emails based on To, From, Subject, Body, Bcc. This tool is a reliable solution for backing up Office 365 mailboxes and restoring OST/PST files. It allows users to download mailboxes and save them to their local drive, ensuring full protection of emails, contacts, calendars, and files with a secure and easy-to-use backup process, perfect for businesses of all sizes. The tool offers features like eliminating duplicate emails based on To, From, Subject, Body, and Bcc, as well as applying Date Range Filters and Folder Selection for precise backup.