Significantly, the error may be due to a bad account setup in the software preferences. Therefore you have to check with the port numbers, authentication, and secure connection. You can easily rectify the issue with my solutions.
Additionally, your login data and history are also stored if you opt for it. Perhaps, the cache and cookie storage can be a reason that can pop up the error. So, you need to delete all this data to fix this error. Using The above-given strategy, the man or woman may without issues configure SSL encryption settings and also fix the error in Outlook 2016.
If you have no idea about it and looking forward to resolving it, you have landed on the right page. If you are a regular Outlook user, then you would surely have faced this error. It is an issue that bothers the users as it halts the proper functioning of Outlook.
Make sure that you’re running the latest version of the software by clicking on the tab File followed by the tab Office Account. Under a header that says Product Information you can click on Update Options and then choose Update Now. This should update your program to the latest version of it if it isn’t already running. This Outlook mail server facilitates the users with secure connection during outgoing mail. After upgrading everything you should go and restart your device. Open and check if the issue has resolved or not, if it is resolve then you are set to use it out.
You can visit the troubleshooting center of Windows and check if it displays any errors. Moreover, you can directly resolve the errors, if any, in your system using the troubleshooter. Consistent switching accounts of Outlook is also a major reason giving rise to the error. If you are using multiple accounts and you log in and log out frequently, then this error may be occurring because of that. Microsoft Outlook automatically stores information and files to make it easier for you to use the program. Sometimes these files can cause you to see e-mails that have been removed or even create the error message.