Are you frustrated because Outlook sending the same email multiple times? This common issue clutters your recipients’ inboxes, damages your credibility, and consumes unnecessary bandwidth. If you’re facing this problem frequently, you’re not alone—and fortunately, there are straightforward ways to resolve it.
In this article, we’ll explore the main reasons Outlook keeps sending the same email multiple times, provide tested solutions, and introduce a professional tool to help eliminate duplicates automatically.
Quick Steps to Solve Outlook Sending the Same Email Multiple Times
- In this scenario, if it’s convenient, you can try to change the network environment to check if it helps.
- Also, you can try to open Outlook in safe mode to verify if it’s related to the add-ins.
- If you have any antivirus software connected to Outlook, please try temporarily turning it off to see whether the problem still exists.
- Adjust Send/Receive Interval.
- Increase Server Timeout: If you configure email using POP or IMAP, you must modify the server timeout.
- Disable Integrated Virus Scanner: Sometimes, antivirus software integrated with Outlook can cause email duplication.
Why Does Outlook Sending the Same Email Multiple Times?
There are several potential causes for Outlook’s multiple email copies. Let us get to know them.
- Emails stuck in the Outbox: Outlook may try to send the email again if it gets stuck and is not sent the first time, resulting in numerous copies. If there are any unsent messages, check your Outbox; if there are any unsent messages left, try to delete or resend them.
- Email Rules: Emails may get copied and forwarded more than once due to incorrectly set email filters or forwarding rules. Ensure your email rules are configured appropriately by reviewing them in Outlook settings.
- Sync Issues: Multiple copies may result from issues with Outlook and the email server’s synchronization. To refresh the synchronisation, try manually synchronising your email or restarting Outlook.
- Viruses or Malware: Viruses or malware on your computer might occasionally cause unexpected actions, such as sending duplicate emails. Make sure your computer is clean by doing a comprehensive antivirus scan.
- Server Issues: Outlook may send duplicate emails due to temporary server problems from your service provider. Watch for a time to see if the problem goes away.
How Do You Troubleshoot Outlook Sending Emails Multiple Times?
It is clear from the above that low space in the disk or mailbox creates this problem in the Outlook application. So, it is suggested that some storage space be made in the system. To do this, follow the instructions below:
- Go to the Recycle Bin folder, and delete all the unnecessary data items.
- Uninstall the programs that are not in use to create some storage space.
- Delete the emails from the Outbox that are repeatedly sent to the same person.
- Reduce some space by removing the message header and body in OE.
Moreover, users can also perform the methods mentioned below:
Here are manual methods to resolve the issue:
1. Check Internet Connectivity
Ensure your internet connection is stable and not dropping intermittently, which causes resending attempts.
2. Clear Outbox Items
Go to the Outbox folder and delete any emails that appear stuck or repeated.
3. Disable Antivirus Scanning for Outgoing Emails
Temporarily disable or adjust your antivirus settings so they do not interfere with email sending.
4. Repair Outlook Profile
- Go to Control Panel > Mail > Show Profiles.
- Choose your profile and click Repair
These manual methods have many disadvantages, which can cause chaos in your work, so if you want to prevent these, try to use automated software.
Use a Professional Method to Fix Outlook’s Doubling of Emails.
If the issue persists due to duplicate items in your Outbox or other folders, manually identifying and deleting them is time-consuming and prone to errors. Here’s where SysTools Outlook Duplicate Remover comes to your rescue.
Why Use This Automated Software?
- Automatically scans and removes duplicate emails from Outlook and many items, contacts, calendars, tasks, notes, and journals.
- Supports both PST and OST file formats.
- Multiple filters (date, folder, field) are provided for precise duplicate removal.
- Maintains original data integrity.
- Compatible with all Microsoft Outlook versions.
Conclusion
In this article, we’ve covered how to effectively fix Outlook sending multiple emails using manual and automated methods. Try to use this aforementioned tool as it can save time and effort. It can bulk eliminate items, making your outlook performance smooth and easy.
