Windows 7 is officially an “end of life” product and it is recommended that you update to Windows 10. If you are still using Windows 7 then you may have noticed, you are no longer able to connect to the email server securely. This is probably due to your Windows 7 installation not having TLS 1.2 enabled.
Your operating system and email program need to support TLS 1.2 to be able to connect to the email server. This guide will explain how you can do that on Windows 7.
Disclaimer: While this guide should be safe to follow, we cannot guarantee that this will not cause any problems with your computer systems. We cannot take any responsibility if damage is caused. If you are not confident in following this guide, please speak to a member of your IT support team or a local IT support shop.
If this still doesn't work then you will have to update to Windows 10.