Troubleshooting Tip: How to investigate duplicate emails issue with FortiMail

Description

This article describes a scenario where users receive multiple duplicate emails from the same sender. The article explains the steps to troubleshoot and resolve the issue with FortiMail.

Scope

FortiMail.

Solution

To resolve the duplicate emails issue with FortiMail, follow these steps:

1. Check the FortiMail log to determine if the repeated emails are being sent from the same sender IP and have the same message ID at FortiMail’s history log at Monitor -> Log -> History.
   
   

2. If the sender IP and message ID are different, it indicates that the emails are being sent separately from different senders to FortiMail.

3. Verify the email subject and content to ensure that they are identical. If the subjects and content are different, it may indicate that the emails are not duplicates.
   
   

4. Check the email headers to determine the sender IP and message ID. This information can be used to identify the source of the duplicate emails.
   
   

5. If the issue persists, contact the sender's email administrator to investigate the issue on their end.

By following these steps, users can troubleshoot and resolve the duplicate emails issue with FortiMail.