Troubleshooting Duplicate Emails in Two Email Accounts in Outlook 2016

Are you experiencing frustration with duplicate emails appearing in your Outlook 2016 account? If so, you're not alone. Many users have reported similar issues, and it's essential to understand the causes behind this problem to resolve it efficiently.

To start troubleshooting, let's consider a few potential factors that might be contributing to this issue. First, we'll rule out email server problems. As your emails are being delivered correctly from the POP3 account (mail server) to Outlook 2016 for sending and receiving purposes, an email server problem is unlikely. Next, we'll examine Outlook settings and configurations.

In your case, you've mentioned that you don't have any add-ons installed, which reduces the likelihood of a plugin causing the issue. You also use Windows Defender as your antivirus software, which should not be interfering with your email functionality. Another important point to note is that you previously used Outlook 2007 and Outlook 2010 on other devices without experiencing duplicate emails.

So, what might be causing this problem? It's possible that there's an issue with how your POP3 account is configured in Outlook 2016. Specifically, the 'Leave a copy of the email on the server for 7 days' setting could be contributing to the duplicates. Although you set this up to ensure delivery to all devices before clearing off the server, it might not be functioning as expected.

Another possibility is that your POP3 account has been set up incorrectly in Outlook 2016. To troubleshoot further, consider checking your account settings and ensuring that everything is properly configured. Additionally, you can try deleting the PST file (Personal Folders File) to clear any corruption or errors that might be causing the duplicates.

In summary, resolving duplicate emails in two email accounts in Outlook 2016 requires a combination of troubleshooting and configuration checks. By ruling out email server problems and examining your Outlook settings, you can identify potential causes and implement solutions to resolve this frustrating issue.

Two email accounts in outlook 2016