Outlook 2016 Deletes and Duplicates Users’ Mails, But There’s a Solution

By: Ivan Jenic
2 minute read

Microsoft updated its Outlook 2016 with a small update, a few weeks ago. And while the most notable feature of the update is a number change, it actually caused a lot of problems to users who installed the update.

However, the issue caused by the update for Outlook 2016 appears to affect only users of POP3 email accounts. Namely, ever since they installed the update, users are reporting that Outlook 2016 either deletes their emails, or duplicates them.

Outlook 2016 Update Reported Issues

First complaint was spotted on Microsoft Community forums, where one user said that he had hundreds of duplicate emails in his inbox, after he installed the update. A few more users reported the similar thing, and it was clear that this was indeed a problem.

“I have recently updated my Office 2016 to the above mentioned version. After this update, I get hundreds of e-mails loaded down from my POP3 account, which were already loaded down earlier. This process is repeated over the day, so that I have finally a whole bunch of multiplied identical e-mails. I have run the “Quick Repair” function with no change. Today, I have run the “Online Repair” function, which has obviously re-installed the whole Office 2016 package. Does somebody know about this issue? It looks like Outlook downloads e-mails, which were downloaded earlier , opened but not yet deleted.”

On the other hand, a couple of days later, users started to complain on TechNet forums that their Outlook 2016 actually does the opposite. It deletes emails from their inbox.

“I ascertain the same issue. Outlook cleared my pop3 postbox after the first start with version 16.0.6568.2025. Following Outlook delete all retreived mails at my pop3-postbox. Additional, mails come in double or triple times in my Outlook inbox.”

Unlike some previous cases with issues caused by Microsoft’s updates, the company actually provided a solution for these problems relatively quick. There are two ways to deal with these issues, as shown in Microsoft’s Knowledge Base article, to switch from POP3 to IMAP4 protocol, and to revert to the previous version of Outlook 2016. If you’re not sure how to do that, just check Microsoft’s article for detailed steps.

Have you noticed similar problems in your Outlook 2016, after installing the update? If you did, we hope this article helped you to solve the issue. In case you have some other issues with Outlook 2016, check out this article.

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