10-09-2025, 07:53 AM
Hey,
My Outlook keeps creating duplicate items after syncing — is there a tool that can automatically clean up all duplicates?
Later, I found one & now I'm sharing with you all.
Yes, this is a common issue when syncing across multiple devices or services, especially if there are interruptions or overlapping sync operations. A reliable solution is SysTools Outlook Duplicate Remover. It automatically scans your PST, OST, or BAK files to detect and remove duplicate emails, contacts, calendar entries, tasks, notes, journals, etc. You can run it in within-folder mode or across-folders mode, apply filters like date, sender, or subject, and even choose whether to delete duplicates permanently or move them to another folder for review. It preserves folder structure, keeps data integrity intact, supports batch processing (so you can clean up multiple mailbox files at once), and works with all newer Outlook versions. This tool helps stop duplicates from piling up and keeps your Outlook clean without having to manually hunt them down.
My Outlook keeps creating duplicate items after syncing — is there a tool that can automatically clean up all duplicates?
Later, I found one & now I'm sharing with you all.
Yes, this is a common issue when syncing across multiple devices or services, especially if there are interruptions or overlapping sync operations. A reliable solution is SysTools Outlook Duplicate Remover. It automatically scans your PST, OST, or BAK files to detect and remove duplicate emails, contacts, calendar entries, tasks, notes, journals, etc. You can run it in within-folder mode or across-folders mode, apply filters like date, sender, or subject, and even choose whether to delete duplicates permanently or move them to another folder for review. It preserves folder structure, keeps data integrity intact, supports batch processing (so you can clean up multiple mailbox files at once), and works with all newer Outlook versions. This tool helps stop duplicates from piling up and keeps your Outlook clean without having to manually hunt them down.