Outlook Duplicates Remover 5.2
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Outlook Duplicates Remover 5.2

Focused utility that helps you find and clean up duplicate items in Microsoft Outlook, so your mailbox stays fast, tidy, and accurate
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Latest version:
5.2 See all
Developer:
Parish of the Holy Spirit, Southsea
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Outlook Duplicates Remover is a focused utility that helps you find and clean up duplicate items in Microsoft Outlook, so your mailbox stays fast, tidy, and accurate. Developed by Parish of the Holy Spirit, Southsea, it scans your chosen folders and safely removes or consolidates duplicates across emails, contacts, calendar events, notes, and tasks.

Key features:


  • One-click duplicate cleanup: Detects identical and near-duplicate items using smart criteria such as subject, sender/recipient, timestamps, message IDs, attachments, and contact fields.
  • Flexible review options: Preview matches, compare items side by side, and choose to delete, merge, or keep the newest/oldest version.
  • Safe by design: Option to move duplicates to a dedicated “Duplicates” folder or back them up before removal for easy undo.
  • Works where you do: Supports Outlook data files (PST/OST) and connected accounts, including Exchange and Microsoft 365.
  • Customizable rules: Fine-tune comparison fields per item type (emails, contacts, calendar events, tasks) to match your workflow.
  • Scales to large mailboxes: Optimized scanning and detailed logs help you track what was found and what was cleaned.
  • Preserves organization: Retains categories, flags, and read status when keeping or merging items, where applicable.

How it works:


  1. Select the Outlook folders and item types you want to scan.
  2. Review the detected duplicates and choose your preferred action (delete, move, or merge).
  3. Run the cleanup with an optional backup to ensure you can restore changes if needed.

Ideal for:


  • Users who migrated or imported mail multiple times and now see repeats.
  • Teams sharing mailboxes or contact lists.
  • Anyone who wants to improve Outlook performance and reduce clutter.

System requirements:


  • Microsoft Outlook (Microsoft 365, 2021, 2019, or 2016 recommended)
  • Windows 10 or later

Privacy and security:


  • Processes data locally on your machine; no cloud upload required.

Notes:


  • Microsoft Outlook is a trademark of Microsoft Corporation.
  • This software is not affiliated with or endorsed by Microsoft.

Outlook Duplicates Remover is developed by Parish of the Holy Spirit, Southsea and is used by 3 users of Software Informer. The most popular versions of this product among our users are: 2.0 and 5.2. The names of program executable files are outlookDuplicates.exe, rundll32.exe.

You can check Duplicate Email Remover, NoMoreDupes for Outlook, Kernel for Outlook Duplicates and other related programs like Automatic Outlook Duplicate Remover at the "download" section.

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