So you've gotten an email that seems to be important and from a company you do business with or from a person that you know. How can you be sure that it's not an email that's trying to gain access to your system or get you to give them your account information?

Here's a video that goes in to detail on how domain names are constructed. How email addresses and links are displayed and how to use that knowledge to ensure you're not being tricked into letting people access your system or go to their fraudulent website.