Mark works as a Network Administrator fot Blue Well Inc. The company has a Windows-based network. Mark is facing a series of problems with email spam and identifying theft via phishing scams. He wants to implement the various security measures and to provide some education because it is related to the best practices while using email. Which of the following will Mark ask to employees of his company to do when they receive an email from a company they know with a request to click the link to verify their account information"?"