How can I check if its a real email or website domain?

I demonstrate using MXToolBox #googleworkspace #googleworkspacetutorial #googledocs #googledocstutorial #gmail These videos are focused on how to use Google Workspace or Gmail as business tools. Learn more about Teddy Burriss from his LinkedIn Profile - http://www.linkedin.com/in/tlburriss.(Follow him for LinkedIn and Google Workspace ideas, tips, tricks, best practices. Please subscribe to our channel to get more value from the content we share here. https://www.youtube.com/channel/UC_zjwmn_6uuMqLkHamS49fw?sub_confirmation=1 I will continue to create useful videos on the best practices and tactics of using Google products.