Kutools for Outlook’s (Delete) Duplicate Mails feature can help you delete all duplicate messages at ease. After you configuring the accounts’ setting, it will automatically avoid downloading duplicate emails that caused by multiple email accounts receiving same emails.
This section will walk you through configuring the Send/receive settings and prevent Microsoft Outlook from downloading duplicate emails from mail sever. Open the Send/Receive Groups dialog box: Options, and then click the Send / Receive button under the Mail Setup tab. In the Send & Receive Groups dialog box, click the Edit button. In the new opening Send & Receive Setting – All Accounts dialog box, select the email count in the left bar, and then click the Account Properties button. In the Internet E-mail Settings dialog box, go to the Delivery section under the Advanced tab, and disable the Leave a copy of messages on the server temporarily. Note: The above method is valid for POP3 email account type.
Since Outlook is a most popular email client being used to send and receive bulk emails in a significant number of organizations as well as at personal level; it must be maintained and upgraded on a regular basis.
The exact error message reads: Mail could not be received at this time: The server for the account [account] returned the error “Logon failure: unknown user name or bad password.” Your username/password or security settings may be incorrect. Re-entering the credentials makes the dialog temporarily disappears.
Sometimes for a couple of hours and sometimes for a few days. I suspect that the issue is related to changes in the authentication mechanism that Microsoft introduced in one of the early version of Outlook 2016. Sometimes a minor gap in quality control, such as the lack of proper upgrade testing can have annoying consequences.
Sometimes, users find it difficult to understand and execute Outlook Search with each updated version of the application.
If you just upgraded your desktop email client to the latest version, you also might be facing Outlook 2016 Search issues.
It not only helps perform a particular search following a defined criterion but also helps to navigate through emails and other components quite efficiently.