Email Security

Question 1

What is an SPF (Sender Policy Framework)?

Answer 1

Email authentication method designed to prevent email spoofing by enabling domain owners to define which servers can send emails on their behalf

Question 2

What is DKIM (Domain Keys Identified Mail)?

Answer 2

Adds a digital signature to allow the receiver to check if the email was actually sent by the domain it claims to be sent from and if the content was tampered with during transit

Question 3

What is a DMARC (Domain-based Message Authentication, Reporting and Conformance)?

Answer 3

Utilizes the results from DKIM and SPF checks to determine the action to take with non-conforming messages

Question 4

What is an Email Gateway?

Answer 4

Server or system that serves as the entry and exit point for emails

Question 5

What is an On-Premises Email Gateway?

Answer 5

A physical server located within an organization’s
premises, offering full control over their email system, but requiring maintenance and updates

Question 6

What is a Cloud-Based Email Gateway?

Answer 6

Hosted by third-party cloud service providers, providing scalability and easy maintenance, but limited control over configurations of their email system

Question 7

What is a Hybrid Email Gateway?

Answer 7

Combines on-premises and cloud-based gateways for a balance between control and convenience over their email system

Question 8

What is Spam Filtering?

Answer 8

Detects and prevents unwanted and unsolicited emails from reaching users’ inboxes