
There are a few things you can check to stop duplicate email messages. How to remove duplicate holidays Prevention How to remove duplicate Outlook address book entriesĤ. How to remove duplicate Outlook Today and Personal Foldersģ. How to remove Outlook duplicates, including email, contacts, appointments, and tasksĢ. Once you are sure that no more duplicates will be created, you can use these methods to clean up the duplicates.ġ. Removal is the second step to eradicating the duplicates.

How to prevent seeing duplicate names when viewing the “Select Names” window after clicking “To:” How to prevent sending duplicate email messagesģ. How to stop receiving duplicate email messagesĢ. Preventing them from occurring in the future is the first step to eradicating them.ġ. Many things cause duplicates to appear, including synchronization with phones, restoring Exchange public folders from backups, incorrect Outlook rules and many other reasons. So this page is broken up into two parts: how to prevent the duplicates from occurring in the first place and then how to clean up the mess. The best way to prevent and remove Outlook duplicates is with a divide-and-conquer strategy. To find out more see our FAQ, including how to find out which Outlook version is installed. All of the information contained pertains to Microsoft Outlook, the desktop client. To work around the issue, select your device and follow the steps to turn off saving sent items in an IMAP email account.This page contains answers to common problems about how to prevent and remove Outlook duplicates, where they come from, and how to avoid them. If the status from server is unread Outlook sets it accordingly. The reason there are duplicates in the Sent Items folder for some email providers is that the server automatically creates an item in the Sent Items and Outlook uploads the same item again.įor Read/Unread status of an email Outlook relies on the server. The workaround below will not always help with this issue. This issue is dependent on the email provider and not controlled by Outlook. This issue will occur for many different email providers including Gmail, AOL, Yahoo, and others.įor some email providers another symptom may occur where Sent Items does not show BCC recipients.

You send email from an IMAP account in Outlook for Windows and when you check the Sent Items folder you notice that the sent email shows duplicated and one of the emails is marked Unread.
