How to Remove Outlook Duplicate Emails Manually

MS Outlook is one of the most widely used email clients from all other available alternatives. It uses PST file format to store the data of users. These PST files are very prone to corruption and thus it becomes necessary to monitor any unwanted or duplicate emails in outlook 2016 and other versions. So if you want to know about an advanced duplicate email remover for Outlook then stay connected with this post. Here you will know about all the methods to remove Outlook duplicate emails very easily.

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Sometimes users transfer emails into an Outlook account without turning on the duplicate email detection button. It creates problems in the performance of your Outlook account. However, there are some reasons for which you may receive notification of duplicate emails in your account.

Also Read – Emails Not Showing up in Outlook – Error Resolved

Reasons Behind Duplicate Emails in Outlook Account

  1. Improper format of rules  – if the rules are not structured properly in Outlook account then you will have duplicate emails in your account.
  2. Issue in mailbox settings – when your mailbox settings are set wrongly then it is likely to receive a single mail multiple times.
  3. Defect in your mail server – sometimes you have duplicate emails in your Outlook account because of a defective mail server.
  4. Installation of Antivirus –  if you have newly installed antivirus in your system then it may hamper the send/receive operation of Outlook.
  5. Duration between Send/Receive option –  Outlook account must have a sufficient time gap between send and receive process otherwise you may receive duplicate emails in your Outlook account.

Methods to Remove Outlook Duplicate Emails

There are two methods to remove Outlook 2016 duplicate emails. You can check out both the techniques and then decide the best option for you.

How to Remove Duplicate Emails in Outlook 2016/2013/2007?

You can use the following techniques to remove Outlook duplicate emails efficiently. 

Way 1 – Adjust  the Inbox Update Frequency

  • Go to MS Outlook account and then select the send or receive option.
  • Now select define send or receive groups options.
  • Here, choose the Schedule an  Automatic Send / Receive query option from 15 to 30 minutes.

Way 2 – Use Inbox Cleanup Tool as Outlook Duplicate Email Remover

  • Go to your MS Outlook account.
  • Now segregate the folders that have duplicate emails in them.
  • Next, go to the Home option and then choose the cleanup option.
  • Now you have to select the required options from the three given alternatives –
  1. Clear up Conversion – omit the duplicate emails and shift them to the deleted emails folders.
  2. Clean up Folder – remove all the duplicate emails from a specific folder.
  3. Break up both Folders and subfolders to remove Outlook duplicate emails.
  • After that select the empty folder option to remove all the double emails in Outlook.

Users can execute both the above-explained procedures to clear up duplicate emails from their accounts. But it is to be noted that these methods are very lengthy. Moreover, you may have to suffer from data loss if you do not have proper knowledge of Outlook settings.

Use a  Professional Outlook Duplicate Remover

If you want to fix the problem of “sending emails twice from an Outlook” issue then you can take help from automated software like DRS Outlook Duplicates Remover Tool. This is a smart tool that enables users to remove all the duplicate data from their accounts. It creates space for new emails by removing unnecessary files from your mailbox. The interface of this software is very simple so it can be easily used by any common user. Besides these functionalities, it has some innovative features which make it unique from other applications. The most significant elements of this utility are highlighted below.

Notable Features of the Professional Solution 

  • Users can use this tool for both PST and OST files.
  • Additional options like Mail and Task Filter to select specific emails that you want to remove.
  • The tool can deal with the end number of PST and OST files at a time.
  • It has a free demo version and a 24*7 tech support team to its users.
  • Users can install this software irrespective of any Windows version they are using.
  • Here, users get different parameters to choose the duplicate emails from their mailbox.


From this article, it is clear that duplicate emails are very troublesome for every user. So, you must remove duplicate emails from your Outlook account. To do that, you can refer to the methods that are discussed in this guide. The professional technique is fast and more reliable than the other two manual techniques. Therefore, you must try out the automated tool and complete your task smoothly.

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