6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

On Microsoft Outlook, most actions can be performed through the Ribbon or keyboard shortcuts. For example, to delete a message, select it and press the delete key. However, there may be instances where a message fails to delete and you encounter error messages such as:

– “The operation failed. The messaging interfaces have returned an unknown error. If the problem persists, restart Outlook.”

– “Messaging interface has caused an unknown error.”

– “Unknown error has occurred.”

Use the Keyboard Shortcuts to Delete

Out of several keyboard shortcuts you probably remember, this one will be quite handy. Here’s how it works:

Step 1: Select the message for deletion.

Step 2: Hold the Shift button.

Step 3: Tap Delete.

Step 4: You should get a pop-up message asking you to confirm the permanent deletion of the email. Click Yes.

Clear Deleted Items

One reason why Microsoft Outlook displays an error message when trying to delete an item might be the full Deleted Items Folder. When this folder is full, you can’t delete Outlook messages.

To fix this error, you need to empty the Deleted Items folder. Here’s how:

– Step 1: On the Microsoft Outlook Folder Pane, right-click the folder labeled Deleted Items.

See also  7 Best Ways to Fix Apps Not Updating on Mac

– Step 2: From the options, select Empty Folder.

– Step 3: You will receive a pop-up message from Microsoft Outlook asking you to confirm the permanent deletion of all items in the folder. Click Yes.

– Step 4: Find the message you want to delete and click the Delete icon.

Edit the Mail Flagged for Deletion

A corrupt mail file might fail to delete. The best way to delete it is by editing it using the steps below:

– Double-click on the message to open it.

– On the Ribbon, look for the Move field and select the More Move Actions icon.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 3: Select Edit Message from the drop-down menu.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 4: Type or remove characters from the email.

In order to make the email shorter, you can type fewer characters or remove unnecessary ones.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 5: Save the message and close it.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 6: Go to the message to delete and tap the Delete icon.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Mark Items for Deletion in Settings

This option works only with Microsoft Outlook accounts set up with IMAP. Here’s how it works:

Step 1: Close Outlook.

Step 2: Launch Control Panel on your PC.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 3: Click on Mail. If you don’t see the Mail option, change the View By setting to Small icons or use the search bar.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 4: On the menu called Mail Setup – Outlook, click Email Accounts.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 5: Open the Account Settings menu and double-click your email Name to reveal its properties.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 6: Click More Settings.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 7: Select the Advanced tab.

See also  10 Ways to Fix Windows 11 Black Screen Issue

Step 8: On the menu named Deleted Items, ensure the following items are ticked:

– Mark the items to be deleted but don’t move them automatically. Under normal circumstances, when you mark items for deletion, they are deleted permanently upon purging of the mailbox.

– Purge the items when switching the folders online.

Step 9: Click Ok.

Another reason a Microsoft Outlook mail may fail to delete is if the PST file is corrupt. PST is the file format for emails, calendar events, and other items in Outlook. To fix a PST file, use the Inbox Repair Tool. Here’s how:

1. Close Microsoft Outlook.

2. Launch File Explorer.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 3: Open your C: Drive.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 4: Select Program Files.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 5: Select Microsoft Office.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 6: Choose your Office version (Office 14, 15, 16, etc.).

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 7: Double-click SCANPST.EXE to run the file.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 8: Click Browse to select the PST file for scanning.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Step 9: Click Start.

Step 10: Click Yes to confirm backup creation.

Step 11: Close the tool when the process is complete.

Step 12: Re-launch Microsoft Outlook to check for a solution.

To restart Microsoft Outlook in Safe Mode, follow these steps:

1. Hold down the CTRL-key.

2. Click on the Outlook Shortcut.

3. Confirm launching Outlook in Safe Mode by clicking Yes in the warning dialog box.

6 Best Ways to Fix Microsoft Outlook Failed to Delete a Message Error

Other Outlook Errors

Emails failing to delete on Outlook is one error you might face. Other common errors include emails stuck in the outbox or cannot expand folder errors.

Leave a Comment