Simple play icon Course

Cisco Core Security: Email Security with Cisco ESA

by Craig Stansbury

More than 65% of threats that affect networks are deployed through email. This course will teach you how to leverage Cisco's Email Security Appliance to help mitigate the threats that can wreak havoc on your network.

What you'll learn

Cisco estimates that between 65 and 80% of threats are deployed through email. In this course, Cisco Core Security: Email Security with Cisco ESA, you will gain the ability to use Cisco's ESA to secure your network. First, you will learn how to route email through the ESA. Next, you will discover how to block malicious senders in the first place. Finally, you will explore how to configure policies to ensure your emails are secure. When you are finished with this course, you will have the skills and knowledge of email security needed to secure your organization's emails.

Course FAQ

What prerequisites are needed for this course?

Before beginning this course, you should be familiar with security concepts and network security fundamentals.

What is the Cisco Email Security Appliance?

The Cisco Email Security Appliance (ESA) is an email security gateway product. It is designed to detect and block a wide variety of email-borne threats, such as malware, spam and phishing attempts.

Why is email security important?

With over 90% of attacks on organizations starting from a malicious email, relying on your built-in security might leave your organization open to cyber criminals that constantly capitalize on the number one attack vector: exploiting human nature and the lack of tight security.

What are common threats to network security?

The most common network security threats are Computer viruses, Computer worms, Trojan horse, SQL injection attack, DOS and DDOS attack, Rootkit, Rogue security software, Phishing, Adware and spyware, and Man-in-the-middle attacks.

How does Cisco ESA work?

Cisco ESA uses a multilayer approach to fight viruses and malware: The first layer of defense consists of outbreak filters, which the appliance downloads from Cisco SenderBase. They contain a list of known bad mail servers. Cisco ESA also scans outbound emails to provide antivirus protection.

What courses will I be prepared for following this course?

Following this course you should feel comfortable diving into Cisco Core Security with courses on Content Security with Cisco WSA and Cisco Umbrella, Securing the Cloud, Secure Network Access with Cisco ISE, and Endpoint Protection and Detection with Cisco AMP.

About the author

Craig has over 10 years of IT experience, including working on Palo Alto Firewalls, Cisco Routes and Switches, Microsoft Servers, and VMWare ESXi. Craig started in IT in the United States Marine Corps and began teaching his Marines all the design and implementation concepts that they needed to know. He loves when his students have the "lightbulb moment" and are able to understand the concepts he is teaching them. Aside from teaching, Craig also owns a business that consults with enterprises to h... more

Ready to upskill? Get started