However, you cannot understand the same without examining your antivirus program. So, it would be better if you uninstall your antivirus or turn it off completely. If it works, then your antivirus is not agreeable with MS Outlook. You have to uninstall the antivirus from your system.
The new installation of the Microsoft Outlook program can make it functional again. You should inspect your Microsoft outlook file the first time you see error on your computer screen. If the installed Microsoft outlook folder has corrupted or damaged files, this can lead to unnecessary issues. One of the primary causes of this error is a fault in your installation action. Sometimes, when you install Microsoft Outlook or Windows, there comes a mistake in the installation action. You can open your Microsoft Outlook, but it will show “” this error.
Mistake could be brought about by establishment measure, that Outlook clashes with other email accounts or other programming introduced on your PC. Also, check your antivirus program because it can block your Outlook account, and you need to change the preferences of your antivirus software or disable antivirus. You have logged in multiple accounts into your system. After following all the suggestions now, the time is to go to the next step.
Install Microsoft Office and try running Microsoft Outlook. If you do not face the error again while sending a message, you are good to go. For the final step, you can try reinstalling Microsoft Outlook from your personal computer. To uninstall Microsoft Office from your computer, follow the steps below. Here are easy steps you can follow to change your server port number.
Then click ok button after completing the process. Here, disable the settings as per the antivirus software you have. Now here check and confirm the duplicate account from the list.