How to deleate duplicate mail in out look

To delete duplicate emails in Outlook, you can use the following methods:

Method 1: Using the "Find Duplicate Messages" feature

1. Open Outlook and go to the "Home" tab in the ribbon.
2. Click on the "Find" button in the "Find" group.
3. In the "Find" dialog box, select "Find Duplicate Messages" from the drop-down menu.
4. Outlook will search for duplicate messages in your mailbox and display them in a list.
5. Select the duplicate messages you want to delete and click the "Delete" button.

Method 2: Using the "Rules" feature

1. Open Outlook and go to the "Home" tab in the ribbon.
2. Click on the "Rules" button in the "Move" group.
3. Click on "Manage Rules & Alerts" in the "Rules" dialog box.
4. Click on "New Rule" and select "Start from a blank rule".
5. Choose "conditions" and select "with specific words in the message header" and enter a keyword or phrase that is common to the duplicate emails (e.g. "Duplicate:").
6. Choose "actions" and select "move it to the Deleted Items folder".
7. Click "Finish" to save the rule.

Method 3: Using a third-party add-in

There are several third-party add-ins available that can help you delete duplicate emails in Outlook, such as:

• Duplicate Email Remover: This add-in can find and delete duplicate emails in your mailbox.
• Email Duplicate Remover: This add-in can remove duplicate emails based on various criteria, such as sender, subject, and body.
• Duplicate Email Cleaner: This add-in can clean up your mailbox by removing duplicate emails and other unwanted messages.

Method 4: Using a script

You can also use a script to delete duplicate emails in Outlook. Here's an example of a VBA script that you can use:

1. Open the Visual Basic Editor in Outlook by pressing "Alt + F11" or by navigating to "Developer" tab in the ribbon and clicking on "Visual Basic".

2. Create a new module by clicking "Insert" > "Module" in the Visual Basic Editor.

3. Paste the following code into the module:

   Sub DeleteDuplicateEmails()
    Dim olApp As New Outlook.Application
    Dim olNamespace As Outlook.Namespace
    Dim olFolder As MAPIFolder
    Dim olItems As Items
    Dim olItem As Object
    Dim dict As Object
   
    Set olApp = New Outlook.Application
    Set olNamespace = olApp.GetNamespace("MAPI")
    Set olFolder = olNamespace.GetDefaultFolder(olFolderInbox)
    Set olItems = olFolder.Items
   
    Set dict = CreateObject("Scripting.Dictionary")
   
    For Each olItem In olItems
        If dict.Exists(olItem.Subject) Then
            olItem.Delete
        Else
            dict.Add olItem.Subject, "1"
        End If
    Next olItem
   
    Set olApp = Nothing
    Set olNamespace = Nothing
    Set olFolder = Nothing
    Set olItems = Nothing
    Set dict = Nothing
   End Sub

4. Save the module and close the Visual Basic Editor.

5. Go back to Outlook and click on "Developer" tab in the ribbon and click on "Macros" button.

6. Select the "DeleteDuplicateEmails" macro and click "Run" to execute the script.

Note: Before running any script, make sure to backup your mailbox and test the script in a non-production environment to ensure it works as expected.