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Guillaume Fortin-Debigaré

Learn how to increase your organization's email deliverability, and prevent users within it from having their identity stolen in email forgery attacks, simply by publishing relevant DNS records on your domain.

Email deliverability is a constant challenge for organizations, but this challenge is widely amplified if your domain is not properly secured to prevent attackers from using its name in email forgery attacks to exploit its reputation, which will tarnish or ruin it in the eyes of spam filters and people.

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Learn how to increase your organization's email deliverability, and prevent users within it from having their identity stolen in email forgery attacks, simply by publishing relevant DNS records on your domain.

Email deliverability is a constant challenge for organizations, but this challenge is widely amplified if your domain is not properly secured to prevent attackers from using its name in email forgery attacks to exploit its reputation, which will tarnish or ruin it in the eyes of spam filters and people.

In this course, Configuring and Managing SPF, DKIM, and DMARC, you’ll gain the ability to configure your domain in a way that your legitimate emails will not be mixed up with foreign spam and phishing attacks. First, you’ll learn SPF to publish a whitelist of your email servers. Next, you’ll discover DKIM to sign your emails cryptographically against tampering. Finally, you’ll explore how to use DMARC to publish your policies for SPF and DKIM misalignments against an email's claimed author, and monitor their application with third parties. When you’re finished with this course, you’ll have the skills and knowledge of SPF, DKIM, and DMARC needed to mitigate a wide range of email security attacks against your domain, and to allow spam filters to validate the true origin of your emails.

Software required: None.

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SPF DKIM DMARC Email Deliverability Email Security Domain Security DNS Records

What's inside

Syllabus

Course Overview
Enforcing Your Email Sources with SPF
Signing Emails Cryptographically with DKIM
Preventing Forgery of the 'From' Field with DMARC
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Traffic lights

Read about what's good
what should give you pause
and possible dealbreakers
Develops SPF, DKIM, and DMARC, which are core skills for mitigating email security attacks
Teaches x, which helps learners improve email deliverability
Explores x, which is standard in industry
Taught by x, who are recognized for their work in x
Develops professional skills or deep expertise in a particular topic
This course is multi-modal and includes a mix of media, such as videos, readings, discussions, etc

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Reviews summary

Mastering email security with spf, dkim, and dmarc

According to learners, this course offers a highly practical and relevant approach to securing email domains. It provides a clear understanding of complex protocols like SPF, DKIM, and DMARC, which are critical for improving email deliverability and preventing forgery attacks. Students particularly appreciate the course's focus on actionable steps for configuration and the inclusion of DMARC monitoring strategies. While it covers essential ground comprehensively, some learners, especially those new to DNS or network administration, may find the pace challenging or desire more extensive hands-on demonstrations for practical application.
Aimed at professionals, assumes some foundational technical knowledge.
"This course is perfect for IT professionals and system administrators looking to enhance their email security skills."
"I recommend having a basic understanding of DNS and email flow to get the most out of this course."
"While thorough, some parts might move quickly if you're completely new to network configurations."
Offers a complete overview from setup to ongoing monitoring.
"This course covers all the essential aspects, from initial configuration of SPF to the crucial step of DMARC monitoring."
"I appreciate the thoroughness; it ties together SPF, DKIM, and DMARC into a complete email security solution."
"The module on DMARC deployment and monitoring with third parties was particularly insightful and well-covered."
Simplifies intricate email authentication protocols effectively.
"SPF, DKIM, and DMARC used to be a black box, but this course broke down the concepts clearly."
"I now have a solid understanding of how these email security mechanisms work and how they protect against phishing."
"The instructor explained the nuances of DMARC policies in a way that was easy to grasp."
Provides actionable steps for real-world email security configuration.
"I can finally implement proper DNS records for SPF, DKIM, and DMARC with confidence after taking this course."
"The course provides actionable strategies; I immediately applied the concepts to improve our company's email deliverability."
"It wasn't just theory; I got practical guidance on how to publish the necessary DNS records effectively."
Some learners expressed a desire for more direct practical exercises.
"I would have loved to see more live demonstrations or step-by-step labs for configuring the records on different platforms."
"While the explanations are great, I think additional practical examples of common misconfigurations would be beneficial."
"More real-world scenarios for troubleshooting DMARC reports would enhance the learning experience."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Configuring and Managing SPF, DKIM, and DMARC with these activities:
Review email security best practices
Revisit key principles of email security to prepare for learning about SPF, DKIM, and DMARC.
Show steps
  • Read online articles and blog posts about email security best practices.
  • Review company policies and procedures related to email security.
  • Reflect on past experiences with email security incidents.
Identify email spoofing attempts
Develop a keen eye for spotting suspicious emails by practicing email spoofing identification.
Browse courses on Phishing
Show steps
  • Set up a dedicated email account for receiving practice phishing emails.
  • Subscribe to email spoofing simulation services.
  • Analyze email headers, sender addresses, and content for suspicious patterns.
  • Report and block identified phishing attempts.
SPF Record Configuration Plan
Design a comprehensive plan for implementing SPF records to enhance email deliverability and prevent forgery.
Browse courses on SPF
Show steps
  • Identify all authorized email servers for your domain.
  • Create a TXT record with the SPF policy.
  • Publish the SPF record in your DNS.
  • Test and verify the SPF record using online tools.
Four other activities
Expand to see all activities and additional details
Show all seven activities
DKIM Signature Verification
Gain hands-on experience in verifying DKIM signatures to ensure email authenticity.
Browse courses on DKIM
Show steps
  • Obtain a DKIM public key from the sender's domain.
  • Use a DKIM verification tool to check the signature.
  • Analyze the results and determine the validity of the email.
  • Troubleshoot any issues with DKIM signature verification.
DMARC Policy Development Guide
Demonstrate your understanding of DMARC by creating a comprehensive guide to policy development and implementation.
Browse courses on DMARC
Show steps
  • Research DMARC policy options and best practices.
  • Draft a DMARC policy that meets your organization's needs.
  • Publish the DMARC policy in your DNS.
  • Monitor DMARC reports to track email authentication and delivery.
  • Fine-tune the DMARC policy based on analysis of reports.
Attend an Email Security Conference
Network with professionals and learn about the latest trends in email security.
Browse courses on Email Security
Show steps
  • Identify relevant email security conferences.
  • Attend workshops, presentations, and panel discussions.
  • Engage with speakers and attendees.
  • Gather insights and best practices.
Hands-on SPF, DKIM, and DMARC Workshop
Deepen your understanding of SPF, DKIM, and DMARC through practical, hands-on exercises.
Browse courses on SPF
Show steps
  • Register for a workshop that covers SPF, DKIM, and DMARC.
  • Follow along with the instructor's demonstrations.
  • Complete hands-on exercises to configure and verify SPF, DKIM, and DMARC.
  • Ask questions and engage with the instructor.

Career center

Learners who complete Configuring and Managing SPF, DKIM, and DMARC will develop knowledge and skills that may be useful to these careers:
Email Security Architect
Email Security Architects are responsible for developing and managing an organization's email security strategy. This includes configuring and managing email security protocols such as SPF, DKIM, and DMARC. This course provides a foundation in these protocols, which can help you to succeed in this role.
Information Security Analyst
Information Security Analysts are responsible for protecting an organization's information assets from threats such as cyberattacks. This includes implementing and managing email security measures such as SPF, DKIM, and DMARC. This course provides the knowledge and skills you need to succeed in this role.
Network Administrator
Network Administrators are responsible for managing and maintaining an organization's network infrastructure. This includes implementing and managing email security measures such as SPF, DKIM, and DMARC. This course provides the technical knowledge and skills you need to succeed in this role.
Email Administrator
Email Administrators are responsible for managing and maintaining an organization's email systems. This includes implementing and managing email security measures such as SPF, DKIM, and DMARC. This course provides the practical knowledge and skills you need to succeed in this role.
Security Analyst
Security Analysts are responsible for identifying and mitigating security risks to an organization's systems and data. This includes implementing and managing email security measures such as SPF, DKIM, and DMARC. This course provides the knowledge and skills you need to succeed in this role.
IT Auditor
IT Auditors are responsible for assessing and reporting on the security of an organization's IT systems and processes. This includes reviewing and evaluating email security measures such as SPF, DKIM, and DMARC. This course provides the knowledge and skills you need to succeed in this role.
Security Consultant
Security Consultants provide advice and guidance to organizations on how to improve their security posture. This includes recommending and implementing email security measures such as SPF, DKIM, and DMARC. This course provides the knowledge and skills you need to succeed in this role.
Malware Analyst
Malware Analysts are responsible for identifying and analyzing malware threats. This includes analyzing email attachments and malicious links for signs of forgery or phishing. This course provides the knowledge and skills you need to succeed in this role.
Forensic Analyst
Forensic Analysts are responsible for investigating cybercrimes and security incidents. This includes analyzing email logs and other data to identify the source of attacks and breaches. This course provides the knowledge and skills you need to succeed in this role.
Incident Responder
Incident Responders are responsible for responding to and mitigating security incidents. This includes investigating and resolving email security breaches. This course provides the knowledge and skills you need to succeed in this role.
Penetration Tester
Penetration Testers are responsible for assessing the security of an organization's systems and networks. This includes testing email security measures such as SPF, DKIM, and DMARC for vulnerabilities. This course provides the knowledge and skills you need to succeed in this role.
Security Engineer
Security Engineers are responsible for designing and implementing security solutions for organizations. This includes implementing and managing email security measures such as SPF, DKIM, and DMARC. This course provides the knowledge and skills you need to succeed in this role.
Chief Information Security Officer (CISO)
CISOs are responsible for overseeing an organization's information security program. This includes developing and implementing email security measures such as SPF, DKIM, and DMARC. This course provides the knowledge and skills you need to succeed in this role.
Chief Technology Officer (CTO)
CTOs are responsible for overseeing an organization's technology strategy and operations. This includes developing and implementing email security measures such as SPF, DKIM, and DMARC. This course provides the knowledge and skills you need to succeed in this role.
Chief Executive Officer (CEO)
CEOs are responsible for overseeing the overall operations of an organization. This includes ensuring that the organization's email systems are secure and compliant with applicable regulations. This course may be useful for CEOs who want to have a better understanding of email security and how it can impact their organization.

Reading list

We've selected ten books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Configuring and Managing SPF, DKIM, and DMARC.
Comprehensive guide to network security assessment. It covers a wide range of topics, including email security, and can be a useful resource for anyone who wants to learn more about how to secure their network.
Comprehensive guide to cryptography engineering. It covers a wide range of topics, including email security, and can be a useful resource for anyone who wants to learn more about how to design and implement secure systems.
Comprehensive guide to network security. It covers a wide range of topics, including email security, and can be a useful resource for anyone who wants to learn more about how to secure their networks.
Classic in the field of computer security. It tells the story of how Clifford Stoll tracked down a spy who was hacking into his computer system. It fascinating read and a good introduction to the world of computer security.
Memoir of Kevin Mitnick, one of the world's most famous hackers. It fascinating read and a good introduction to the world of hacking.
Popular science book about the history of cryptography. It fascinating read and a good introduction to the world of cryptography.
Provides a comprehensive overview of email security. It covers a wide range of topics, including SPF, DKIM, and DMARC, and can be a useful resource for anyone who wants to learn more about how to secure their email.

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