Outlook resending old emails

Janice Young 25 Reputation points
2026-02-02T15:17:57.22+00:00

When I open my Outlook email, it resends emails from as far back as 2024

Outlook | Windows | Classic Outlook for Windows | For home
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Answer accepted by question author
Kal-D 7,380 Reputation points Microsoft External Staff Moderator
2026-02-03T17:54:04.2866667+00:00

Hi Janice Young,

Welcome to Microsoft Q&A.

Outlook may resend old emails if it thinks they did not finish sending correctly. This can usually be fixed with a few simple steps.

1. Pause email sending

Open Outlook

Click the Send/Receive tab

Click Work Offline

This stops Outlook from sending emails while we fix the issue.

2. Check the Outbox

Click the Outbox folder

If you see any emails there, delete them or move them to another folder

3. Temporarily turn off Add-ins

Click File > Manage Add-ins

Uncheck all boxes and click OK

Close and reopen Outlook

4. Fix Outlook’s email file

Close Outlook

Open the Inbox Repair Tool (SCANPST.EXE) and run the repair

This helps fix problems that cause old emails to resend.

When finished, open Outlook again and click Send/Receive > Work Offline to turn it back off.

Please let me know if this proves useful you, or if you would like further assistance.

I'm looking forward to hearing from you.

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  1. AI answer

    2026-02-02T15:19:08.44+00:00

    If Outlook is resending old emails, it may be due to a stuck read receipt or an issue with the Send/Receive process. Here are some steps you can take to resolve this issue:

    1. Check the Outbox: Ensure there are no messages stuck in the Outbox folder. If there are, try deleting them.
    2. Clear Stuck Read Receipts: Sometimes, a read receipt can get stuck and cause Outlook to resend emails. You can try deleting any read receipts that may be causing this issue.
    3. Create a New Send/Receive Group: If the Send/Receive group is damaged, creating a new one can help. You can do this by going to File > Options > Advanced > Send/Receive and then copying the existing group to create a new one.
    4. Repair Outlook: If the problem persists, consider repairing your Outlook installation through the Control Panel.
    5. Check for Updates: Make sure your Outlook is up to date, as updates may fix bugs related to email sending and receiving.

    By following these steps, you should be able to stop Outlook from resending old emails.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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