If the option has been enabled before, then your sent emails could keep disappearing from Outlook 2017/2016. There is an option to not save the outgoing mails in the server. If your emails are disappearing from Outlook's Sent folder, then you might need to change some settings. Your email might be sitting there all this time! Therefore, go to the sidebar and check the Junk (spam), Deleted Items (trash), or any other custom folder. Also, you could have just deleted it earlier and might not remember it now. Chances are that the email you are looking for could have skipped the inbox and moved to the spam.

1 Check Other Foldersīefore you take any drastic measure to get back emails disappearing from Outlook 365, make sure that you have checked all the other folders. If one of these methods would not yield the expected results, then try some of the other listed solutions instead. Since there could be multiple reasons for emails disappearing from Outlook, we have listed eight ideal techniques to fix this. How to Recover Missing Emails from Outlook?

The Outlook's server could be unavailable or any other syncing issue.

The Outlook PST file might be deleted unintentionally.

The native firewall could have blocked or removed the mails.

You could be looking for wrong email subjects or senders.

The view settings on Outlook might be tampered with.

There might be some configuration issues with your Outlook server or account.

You would have made a mistake while setting up your email account.

Your system might not be connected to a stable internet connection.

The pre-set filters or rules on a folder would have blocked the email.

They could have been moved to any other folder like Junk or Archives.

Ideally, if your emails keep disappearing from Outlook, then it could be because of these causes. Too often, it can become a persisting situation in which emails would disappear from Outlook regularly. There are times when Outlook users are not able to find their emails or even folders.

Part 4: How to Protect Your Outlook Emails?.

Part 3: What If Recovered Emails are Corrupt in Outlook?.

Part 2: How to Recover Missing Emails from Outlook?.Part 1: Why Emails Disappear from Outlook?.

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