Outlook is Sending Multiple Copies of An Email – Fixed

  author
Rollins Duke   
Published: October 5th, 2023 • 6 Min Read

If your Microsoft Outlook is sending multiple copies of an email and you are looking for a solution to resolve this problem. Then, you have landed on the correct webpage that explains the solutions to fix the below-mentioned queries.

  • Why is my Outlook sending duplicate emails?
  • How to stop duplicate sent emails in Outlook?

A few days ago, we explained the detailed information about why Outlook is receiving duplicate emails with the proper solution. Thereafter, a lot of users contacted the BitRecover support team to ask and get the best solution to resolve “Outlook sending multiple copies of same email” problems. Hence, we have decided to publish a detailed guide to resolve Outlook is sending multiple copies of an email.

5 Steps to Fix Outlook is Sending Duplicate Emails

  1. Install and run BitRecover Software.
  2. Add Outlook data files in software GUI.
  3. Select the required folders and press Next.
  4. Choose a mode to fix Outlook sending duplicates.
  5. Click Extract button to fix sending multiple copies.

Recommended: Steps to Remove Duplicate Outlook Recipients

Why is Outlook Sending Multiple Copies of Same Email?

There are multiple possible reasons behind Outlook is sending multiple copies of an email. Let’s know them:

  • Stuck Outbox Messages: If an email gets stuck in the Outbox and doesn’t send properly, then Outlook might attempt to resend it, leading to multiple copies. Check your Outbox for any unsent messages and try deleting or sending them again.
  • Email Rules: Misconfigured email rules or forwarding rules can result in emails being duplicated and sent multiple times. Review your email rules in Outlook settings and ensure they are set up correctly.
  • Sync Issues: Syncing problems between Outlook and the email server can cause multiple copies. Try manually synchronizing your email or restarting Outlook to refresh the synchronization.
  • Viruses or Malware: Malware or viruses on your computer can sometimes trigger unintended actions, including sending multiple emails. Run a thorough antivirus scan on your system to ensure your machine is clean.
  • Server Issues: Temporary server issues on your email provider’s end can lead to Outlook is sending duplicate emails. Wait a while and see if the issue resolves itself.
  • Add-ins or Extensions: Sometimes third-party add-ins in Outlook can sometimes cause conflicts or glitches, leading to email duplication. So, this is advisable to disable any recently installed add-ins and see if the issue is fixed or not.
  • Send/ Receive Settings: Incorrect Send/ Receive settings in your MS Outlook can cause duplication. Double-check these settings to ensure they are configured in the proper way.
  • Network Issues: Unstable or slow network connections can interrupt the sending process and cause duplication. Ensure your internet connection is stable. Due to a slow internet connection, your Outlook becomes slow to receive emails and send emails.

Recommended: Tips to Remove Duplicate Calendar in Outlook

#1 Manual Methods to Stop Sending Duplicate Emails Outlook

There are multiple techniques to fix Outlook is sending multiple copies of an email manually. Here, we are explaining only the best ways to resolve queries like Outlook sending 2 copies of every email. Let’s look at them:

Disable Do Not Save Copies of Sent Items

  1. Run MS Outlook 2021, 2019, or 2016 and choose File.
    outlook file option
  2. Choose Account Settings >> Manage Profiles.
    manage profiles
  3. Select the Email Accounts option as shown in the below screenshot.
    email accounts
  4. Double-click on the configured account.
    select account
  5. Thereafter, choose the More Settings option to continue.
    more settings
  6. Now choose Advanced Tab.
    advanced
  7. Uncheck do not save copies of sent items and press Ok.
    fix outlook sending multiple copies of same email

Note: After that, you need to check whether your Outlook is sending multiple copies of an email or not.

Change Outlook’s Options (Advanced)

  1. Launch your Outlook and click on File from the ribbon.
    outlook file option
  2. Choose Options from the dropdown list.
    options
  3. Click on the Mail option as shown in the below screenshot.
    mail
  4. Go to the Save Messages section and disable save copies of messages in the Sent Items folder.
    save copies of messages in the sent items folder
  5. Last, click the Ok button to finish.

Note: Now, sent a test mail to any recipient and check if is Outlook sending multiple copies of same email or not.

Change Send/ Receive Interval Time

  1. Start Outlook (2021, 2019, or 2016) and choose the File option.
    outlook file option
  2. Now choose Options that is available in the dropdown.
    options
  3. After that, click the Advanced option.
    resolve outlook sending two copies of email
  4. Select Send/Receive option from Send and Receive section.
    outlook sending 2 copies of every email
  5. Now set it to schedule an automatic send/receive every 10 minutes.
    schedule a time

Increase Server Timeouts

Microsoft Outlook allows to configure user accounts using IMAP and POP3 protocols. Both IMAP and POP protocols give sync, send, and receive responses according to timeout settings. You need to increase server timeout from 1 minute to 3 minutes if your Outlook is sending multiple copies of an email message.

  1. Start MS Outlook 2021 and choose the File option.
  2. Select Account Settings >> Server Settings option.
    server settings
  3. Choose the Outgoing Mail option.
    outlook sent duplicate emails
  4. Increase Server timeouts from 1 minute to 3 minutes and press Next.
    server timeouts
  5. Please wait while updating your profile.
    updating account settings
  6. Account successfully updated, hit the Done.
    outlook send multiple emails with different attachments

Read Similar: Guide to Remove Duplicate Tasks in Outlook

# Pro Method to Fix Outlook Send Multiple Emails with Different Attachments

Outlook Duplicate Remover Software is available to remove duplicate emails from PST (Personal Storage Table) or OST (Offline Storage Table) files. It is capable to remove replica emails, contacts, calendars, tasks, notes, journals, tasks, to-do lists, etc. The tool is compatible with both configured and orphaned Outlook data files.

Note: You can perform this task using this software to fix duplicate clutter in existing data files. However, you will need to set proper account settings to stop sending duplicate emails to Outlook in the future.

How to Fix Outlook is Sending Multiple Copies of an Email?

  1. Launch the software and choose an option to add Outlook data in software panel.
    add outlook profile data
  2. Select Outlook items from the software window and press the Next button.
    select outlook folders
  3. Choose a mode to stop sending duplicate emails Outlook.
    two modes
  4. Use advance settings according to your choice and need.
    advance filters
  5. Click the Browse button and set a preferred location to store output data.
    browse destination path
  6. Select the Extract button to start fixing the “Outlook is sending multiple copies of an email” error.
    fix outlook is sending multiple copies of an email
  7. See a pop-up message of completion, press Ok.
    completed successfully
  8. Get output data from the selected destination path.
    processed outlook data
Conclusion

In this article, we have discussed the top ways to fix Outlook is sending multiple copies of an email using several multiple techniques. We have also mentioned a premium solution to resolve Outlook send multiple emails with different attachments related queries. You can use the above-mentioned tips and tricks to stop sending duplicate emails Outlook.