“Outlook Receiving Duplicate Emails”— Fix the Error Quickly

Microsoft Outlook, one of the renowned email services, is popular for offering intuitive and supreme functionalities for managing the mailbox. Unfortunately, if Outlook receiving duplicate emails then, finding the original yet important emails is quite ambiguous from the cluttered copies of folders.

Moreover, several factors are behind getting duplicate email folders of inbox, junk, spam, etc. Besides this, the mailbox receives similar emails, attachments, contacts, and more. The impact of these errors certainly slows down the performance of Outlook and even gradually increases the size of the mailbox.

Why is Outlook Downloading Duplicate Emails/ Folders?

There are various reasons behind Outlook receiving duplicate emails. Moreover, users can find the replicating emails via subject, sender, text, recipient, attachment, etc.

Before delving into the solution, let’s first out the common factor for replicating emails in Microsoft Outlook. Now, read the below-mentioned curated list of causes of this error configuration:

• Wrong Email Rules and Filters Setup:- Often unknowingly, users might configure the incorrect configuration of email filters or rules that lead to creating multiple copies of email folders. Moreover, users can find the duplicate folder of Inbox/ Spam/ Junk/ Sent Items.
• Outlook Configuration Error:- Besides the email rule error, users might opt for the wrong settings while configuring the email account in Outlook. Moreover, if you’ve configured a single email account in MS Outlook with different email protocols such as POP3 and IMAP. Then, it will leave you with replicating email data in your Outlook application.
• Email Synchronization Error:- Receiving duplicate emails in Outlook when there is an error in email synchronization between the email server and Microsoft Outlook. This common flaw can be seen in every Outlook edition. Another reason behind this error includes unstable connectivity which also duplicates the email data.
• Issues of Add-ins:- If you’ve installed third-party add-ins then, it is yet another factor for creating flaws in seamless synchronization. Often some plugins retain flaws that certainly result in making copies of emails in Outlook.
• Human Error:- Sometimes untrained eyes accidentally click on “Send/Receive” multiple times while sharing the emails. Hence, the lack of technical knowledge is yet another cause for Outlook duplicate emails.

Overall, these are the prominent factors behind creating similar copies of emails in MS Outlook. Now, seeking how to stop duplicate emails in Outlook. To eliminate these major issues, let’s closely discover the manual methods for Outlook remove duplicate emails smoothly. Now, dive in to begin the process.

Fix the Error of “Outlook Receiving Duplicate Emails” Using Manual Solutions

In the following section, we will explain the complete manual step guidance for fixing the misconfiguration of Outlook downloading duplicate emails. Now, move ahead to discover them one after another.

#1. Verity Duplicate Email Account

Sometimes users might configure an email account using both IMAP and POP3 protocol settings. Therefore, it is necessary to remove one account to fix the issue of Outlook duplicate emails. Here is the step guidance for deleting duplicate email accounts:-

1. Login to your Outlook application.
2. Move to the “File” tab > Account Settings.
3. After this, “Manage Profiles” and here, choose the duplicate profile.
4. Select “Remove” and press Yes for confirmation.
5. Now, restart the MS Outlook to check if the account has been deleted.

#2. Recheck Email Rules and Filters

To fix the issue of Outlook receiving duplicate emails, users need to review the settings of rules and filters. Go through the steps below:

1. Open Rules Manager

• Go to Home > Rules > Manage Rules & Alerts.

2. Review Rules

• Check for duplicate rules that might be causing emails to be downloaded multiple times.

3. Delete Duplicates Emails

• Select any unnecessary rules and click on Delete.

#3. Enable “Do Not Import Duplicates”

For both trained and untrained eyes, it is important to enable the option of Do not import duplicates while importing PST files. Using this feature, users can eliminate the fear of creating replicating data in their Outlook profile.

#4. Use Clean Up Folder

1. Launch and open MS outlook.
2.  Go to the folder which you want to clean. (e.g.,Inbox)
3. Click on the “Home Tab” button.
4. Click “Clean up” in the Delete group.
5. Now, Select “Clean up Folder”.
6. Click “Clean up Folder” in the confirmation dialog to remove inessential email.

For Outlook duplicate emails, users need to opt for the clean up folder feature. Using this option, users can fix the error of outlook receiving duplicate emails and scan all conversations and delete duplicate emails in outlook.

#5. Adjust Send/Receive Settings

1. Open Send/Receive Groups

• Go to File > Options > Advanced tab.
• Under the Send/Receive section, click Send/Receive button.

2. Edit Group Settings

• Select “All Accounts” and click on Edit.
• Ensure that no account is listed multiple times. Then, adjust the schedule to avoid overlapping on send/receive intervals.

#6. Disable Leave a Copy on Server

MS Outlook is an effective method to fix the error of outlook receiving duplicate emails. This setting ensures that emails are removed from the server after being downloaded to your local Outlook client, thereby avoiding multiple downloads of the same email or messages.

1. Open Account Settings

• Go to File > Account Settings > Account Settings.

2. Modify Email Account

• Select your email account and click on “Change”.

3. Advanced Settings

• Click on More Settings, then go to the Advanced tab.

4. Uncheck Leave a Copy section

• Uncheck Leave a copy of messages on the server host.
• Click OK and Next to finish.

#7. Use Inbox Repair Tool (scanpst.exe)

1. Locate ScanPST.exe file

• Find ScanPST.exe in your Office installation directory.

2. Run ScanPST.exe

• Double-click ScanPST.exe.

3. Select your Data File

• Click Browse to select your Outlook Data File (.pst).

4. Start Repair button

• Click Start to begin the scan and repair.

5. Complete Repair process

• Follow the induce to complete the repair process.

Why Not Opt Manual Solution for the “Outlook Receiving Duplicate Emails” Error?

• In the absence of adequate technical knowledge, users can’t follow any of the above-suggested manual guidance for Outlook duplicate emails. Hence, users must have an understanding of Outlook’s prime features and functionalities.
• Using the free solution, it is complicated to find the number of replicating email data in Outlook. Besides this, it is considered a time-consuming task for users when it comes to deleting a bunch of duplicate emails.
• By implementing the method of clean up folder, users might receive the error “No messages were cleaned”. Therefore, you can also read manual method for fixing the error of remove duplicate emails in Outlook.

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FAQ (Frequently Asked Questions)

Q. How to stop duplicate emails in Outlook?
Follow the below steps to fix the issue of Outlook receiving duplicate emails:-

1. Download the above tool on your machine.
2. Go to Add Files and then, move to Within Folders from Duplicate Options and press Next.
3. Now, select the checkbox.
4. To complete the process, click on Change and go to Next.
5. Now, choose the required filter options and press OK to begin the process.

Q. Why are my emails getting duplicated?
There are several reasons behind Outlook duplicate emails such as misconfiguration in Outlook rules settings and even the synchronization error.

Q. Is there any limitation of file size in this tool?
No, users can add large-sized PST files for Outlook remove duplicate emails easily.

Also Read: know how to fix errors of Outlook PST reached maximum size.