The Outlook backups will take more space and if you save backups at any external cloud storage, then you will need to pay more for extra spaceĬreating incorrect rules in Outlook is the most common cause of Outlook mail duplication.

Duplicate emails increase the size of the Outlook data files unnecessarily.

If you continue to reply to the same email multiple times, then it will lead to further confusion. The user cannot confirm whether an email was replied to or not. How to Remove duplicate items on Outlook Why Duplicate Items Can Be a Problem? What are the Reasons for the Duplication of Emails in Outlook? In this article, you will learn multiple approaches on how to effortlessly remove duplicate items in Microsoft Outlook Once the import is completed, remove duplicate items can be very tedious.

When you import items in MS Outlook, and the duplicate detection option is turned off, Outlook skips removing the duplicate items during the import process. Importing Outlook items from archives or PST files is very common. Avid users can generate a lot of Outlook items that swell up PST file size and consume a lot of One Drive or Hard drive space. Outlook falls in the center of professional communication and email exchange.

Delete duplicates in outlook archive