How to Find Duplicate Items from Multiple PST Files?

Over time, you may end up with several PST files—old backups, exported mailboxes, or files from previous Outlook setups. When you finally combine or review them, it becomes difficult to tell which emails or contacts are new and which ones are duplicates. Instead of manually checking each file, you open the SysInfo Outlook Duplicate Remover Tool.

You add all your PST files at once, and the tool instantly begins scanning their folders. It compares subjects, senders, timestamps, attachments, and other details to spot repeated items. Within minutes, you have a clear list of duplicates found across all PST files. You can review them one by one and decide what to keep or remove. What used to take hours is now handled in a smooth, controlled way.
 
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