Can Spoofed Email be completely avoided?
The reality is that it’s impossible to stop email spoofing because the Simple Mail Transfer Protocol, which is the foundation for sending emails, doesn’t require any authentication. That’s the vulnerability of the technology.
There are multiple ways to reduce the chance of receiving or sending spoofed emails, but due to the Mail Transfer Protocol's nature, it is not possible to be completely eliminate it.
Below is the article of different way you can implement to lower the amount of spoofed emails: