How to Become a DMARC Expert?

Blog, DMARC

Master the art of DMARC and protect your email domain from phishing and spoofing attacks. Learn about the essential skills and tools to become a DMARC expert.

by Ahona Rudra

Reading Time: 9 min
How to Become a DMARC Expert?
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Your domain name is the digital storefront of your online business. It often becomes the primary target of cybercriminals, who may impersonate you to send emails to your clients! Almost every other business faces challenges securing their email domains from cyber attacks. This is where becoming a DMARC expert can make a difference.

DMARC or Domain-based Message Authentication, Reporting and Conformance is now needed. It helps protect your email domains from phishing and spoofing attacks. Therefore, it has also become essential for every organization to hire a DMARC expert to take them through the DMARC implementation process and safeguard their domains. So, why can’t you become that DMARC expert? 

This article explains everything you need to know to become a DMARC expert and protect your emails against spoofing attacks. Read on to discover more!

Key Takeaways

  1. Your domain name acts as your online storefront and is a prime target for email-based attacks.
  2. Understanding and implementing DMARC, SPF, and DKIM is essential for effective email authentication and security.
  3. DMARC not only protects against phishing and spoofing attacks but also ensures compliance with industry standards.
  4. Interpreting DMARC reports is crucial for identifying vulnerabilities and improving your email security posture.
  5. Continuous learning and hands-on experience in DMARC implementation will position you as a valuable expert in email security.

Understanding the Basics of DMARC

DMARC is an email security authentication protocol that ensures emails are genuinely from the domain they claim to be from. It’s like a verification system that checks whether an email is authentic or a scam waiting to happen.

DMARC doesn’t work alone. Its function requires the proper implementation of SPF and/or DKIM protocols, which authenticate the email source. To pass DMARC authentication, emails must align with either of these two protocols. 

DMARC defines actions for email receiving MTAs on how to respond to messages that fail SPF and DKIM checks. It also enables a feedback mechanism, allowing receivers to send back reports on authentication results to the sending domain.

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Why DMARC? 

The DMARC protocol is essential for handling various email security issues and protecting email domains. It fights against email-related frauds with advanced authentication techniques. Furthermore, it ensures that email security strategies against cyber threats are aligned and updated.

DMARC has been made mandatory to maintain compliance across various industry standards. Google and Yahoo have mandated DMARC for bulk email senders, and PCI-DSS version 4 compliance will also need DMARC from 2025. This makes DMARC an indispensable addition to your email security suite. 

Essential Skills and Knowledge for a DMARC Expert

To become a DMARC expert, mastering the following skills is crucial.

Understanding Email Authentication Protocols

The primary requirement for becoming a DMARC expert is to have a deep understanding of email authentication protocols: 

  1. SPF(Sender Policy Framework): Know how SPF works, how to create an SPF record, and how SPF contributes to the email authentication procedure. 
  2. DKIM (DomainKeys Identified Mail): Know how DKIM works, how to implement DKIM in the DNS and the process for signing emails and verifying signatures. 
  3. DMARC (Domain-based Message Authentication, Reporting and Conformance): Gain in-depth knowledge of how DMARC builds on SPF and DKIM, including policy enforcement, report analysis, and the interpretation of aggregate and forensic reports.

DNS Management

DMARC experts must have a strong knowledge of how email is sent and received. This includes the role of mail servers and the SMTP protocol. You must understand how DNS works, including the process for creating and updating your DNS records – especially records for SPF, DKIM, and DMARC. 

Cybersecurity Knowledge

A DMARC Expert must be aware of common email-based threats that affect communication and cause data interception and breaches. 

  • Phishing and Spoofing Prevention: Understand common forms of email fraud like phishing, spoofing, BEC (Business Email Compromise) and how DMARC helps prevent these risks. 
  • AI and Social Engineering: Have an understanding of sophisticated AI-based fake emails, including how to spot and prevent them. It is also important to be able to identify social engineering tactics where attackers use psychological manipulation to defraud victims. 

Analyzing DMARC Reports

Interpretation of DMARC Reports is essential to detecting flaws in your email authentication setups, potential spoofing and phishing attacks and email deliverability issues. The reports help identify the patterns of scam emails and threats to the domain. A DMARC expert should be able to: 

  • Read complex XML DMARC aggregate report data.
  • Identify inconsistencies in email deliverability.
  • Identify anomalies in email sending sources.
  • Treat potential spoofing attempts with suspicion and take appropriate action.
  • Ability to make data-driven decisions based on report analysis.
  • Be able to troubleshoot issues related to email deliverability.

Continuous Learning with Industry Best Practices

The email authentication landscape is continuously evolving, making it crucial to stay updated on what’s new with DMARC and its related technologies. It is also important to follow industry best practices: 

  • Follow email security adoption trends and industry news.
  • Read client testimonials and success stories to examine real-world examples of how organizations have successfully implemented DMARC. 

Step-by-Step Guide to Becoming a DMARC Expert

Knowing the basics of DMARC is essential if you want to learn it. But, to be called an expert, you must master various aspects of DMARC authentication. Here is what you need to know about authentication with DMARC.

Step 1: Know the Basics of Email Authentication

Knowing the basics of email authentication is essential for anyone who wants to be a DMARC Expert. DMARC authentication works by validating emails with DomainKeys Identified Mail (DKIM) and Sender Policy Framework (SPF). 

DKIM authentication adds a digital signature to emails from a legitimate source to identify the email’s authenticity. Whereas, SPF email allows domain owners to enlist which domains can send emails on their behalf.

DKIM and SPF authentication let email providers like Gmail and Yahoo verify the authenticity of emails. You can define your authentication rules with the help of DMARC. By implementing DMARC policies, you can tell the servers what to do with emails that have failed authentication checks.

Step 2: Gain Hands-On Experience By Setting Up DMARC For Your Domain

Practice DMARC implementation in your domain to better understand it and its features. Master the implementation process before calling yourself a DMARC Expert.

The first step in implementation is publishing DMARC in your domain’s DNS. To publish DMARC, you need to log into your DNS management console. Select the DNS management option to access your DNS record settings. After that, add your DMARC TXT record.

You must check specific domain requirements according to your DNS provider. You can read the detailed DMARC setup guide here.

Step 3: Master Reading And Analyzing DMARC reports

Observe the reports after setting the policy to “none.” Monitoring authentication results must be a long-term and ongoing process throughout your authentication journey. Both aggregate and forensic reports provide information on how emails are sent through domains.

Experts need to know how to analyze these reports to identify unauthorized and malicious use of the domain. These reports can also help you determine whether the current DMARC Policy is effective.  

Step 4: Take a Phased Approach to Policy Enforcement

When rolling out your DMARC policy, a DMARC expert will handle it professionally by taking a strategized and phased approach. Enforcing DMARC should be a gradual process followed by continuous monitoring along the way. 

Experts recommend starting with a no-action DMARC policy like “none”, and slowly moving to quarantine keeping pct=50 for 50% policy rollout. Then you can apply the policy to 100% of your outbound emails. Once confident with your setup and email deliverability you can opt for a p=reject DMARC policy.

Certifications & Training Courses on DMARC & Email Authentication

Learning basic and advanced security skills is essential to positioning yourself as a DMARC expert. Various courses have been developed for this purpose. You can validate your expertise in the market and amongst your peers with professional email authentication certifications.

Free online email authentication courses have been designed to help you gain expertise. Here are the two best DMARC training courses to help you become a DMARC expert:

Email Authentication Fundamentals Course

PowerDMARC’s Email Authentication Fundamentals Course is ideal for beginners and explains the basics of SPF, DKIM, DMARC, MTA-STS, and BIMI. The course is comprehensive and easy to understand with simplified modules and interactive videos.

Completing the entire course takes only 1 hour and 28 minutes, divided into 8 modules. The course includes a detailed breakdown of email-based threats, an introduction to email authentication and related protocols, and basic setup and implementation processes. It effectively sets the groundwork for a more advanced course. 

Advanced Email Authentication Course

PowerDMARC’s Advanced Email Authentication Course is for those who to take the next step in becoming a DMARC expert by learning the ins and outs of email authentication. It takes around 3 hours and 54 minutes to complete and has 15 modules. The course focuses on the technical aspects of SPF, DKIM, DMARC, MTA-STS, and BIMI. It also includes detailed error-handling processes and solutions to configuration issues.

Common Challenges in Mastering DMARC

DMARC experts must be aware of the following common challenges in DMARC implementation:

1. Errors in Configuring SPF Records

SPF record contains a list of IP addresses authorized to send emails to a domain. The misconfigured SPF Record affects the proper implementation of DMARC. SPF is also prone to permanent errors on exceeding more than 10 lookups during DNS queries. 

Solution

Domain owners and DMARC experts can resolve the issue by keeping an inventory of all sending sources. This will prevent missing out on authorizing legitimate senders. Furthermore, the 10 DNS lookup limit for SPF can be resolved using Macros. 

2. DKIM Key Mismanagement

The Public/Private key pairs used in DomainKeys Identified Mail consist of long data strings. Any mistake in handling these complex keys can cause DKIM configuration errors, ultimately causing DMARC implementation issues. DKIM keys also need to be periodically rotated to enhance security

Solution

To resolve this issue, experts may use hosted DKIM solutions that may facilitate automated DKIM key and select management. 

3. Difficulty in Reading DMARC Reports

DMARC reports are generated in XML, which is hard to read if you don’t understand Extensible Markup Language. This machine-level language can look like a puzzle to non-technical people. To make the process easier, DMARC experts rely on DMARC report analyzer tools. These cloud-based platforms parse and simplify complex XML reports into human-readable data. 

Tools and Resources for DMARC Experts

Here are some reliable online resources and tools for DMARC experts, focusing on standards, best practices, and authoritative documents:

1. IETF RFCs and Standards

  • RFC 7489: The foundational document that defines the DMARC protocol, outlining its purpose, implementation, and requirements.
  • RFC 7208: The standard that defines the Sender Policy Framework (SPF), essential for understanding SPF’s role in email authentication.
  • RFC 6376: The document that defines DomainKeys Identified Mail (DKIM), providing detailed information on how to sign and verify emails.

2. Official Documentation and Guides

  • DMARC.org: The official website for DMARC, offering a wealth of resources including guides, FAQs, and best practices for implementing DMARC.
  • M3AAWG (Messaging, Malware and Mobile Anti-Abuse Working Group): Provides white papers and best practice documents on email authentication, including DMARC, SPF, and DKIM.
  • IETF Datatracker: A platform where you can find the latest drafts, RFCs, and updates related to email authentication standards like DMARC, SPF, and DKIM.

3. Online Communities and Forums

  • Be a part of online forums where experts and practitioners discuss challenges, solutions, and updates related to DMARC.
  • Subscribe to mailing lists and discussion groups where ongoing developments and issues related to DMARC are discussed by industry experts.

4. Research Papers and Case Studies

  • Access research papers and case studies on email authentication, DMARC effectiveness, and related security topics.

Building a Career as a DMARC Expert

Organizations often overlook email security. This is why DMARC experts are increasingly in demand. Depending on their expertise, they are various job opportunities for them in the market.

All top industries and sectors now need mandatory DMARC implementation to protect themselves from email threats. Companies, including PayPal, LinkedIn, Bank of America, and others, have implemented DMARC to secure email communications.

Below are some fields in which DMARC experts can pursue their careers.

  • Cyber Security Analyst
  • Data Protection Officer (DPO)
  • Cyber Security Analyst
  • Information Security Analyst
  • Cyber Security Engineering Specialist
  • Senior Security Engineer

Explore open roles and opportunities here. 

Positioning Yourself as a DMARC Expert in the Job Market

Certification in email security and management can help you enter the job market. Here some of the most in-demand cybersecurity courses for aspiring professionals: 

  1. Certified Information Systems Security Professional (CISSP)
  2. Certified Ethical Hacker (CEH)
  3. Certified Information Systems Auditor (CISA)
  4. Certified Information Security Manager (CISM)
  5. CompTIA Security+
  6. Certified Cloud Security Professional (CCSP)
  7. Certified in Risk and Information Systems Control (CRISC)

Employers nowadays also value practical experience. Therefore, as an expert, you must have hands-on experience in DMARC implementation. Work on the projects that need configuring and monitoring email authentication protocols. Get experience in analyzing DMARC reports and fixing email authentication issues. This will help you stand out as a DMARC expert.

Final Words

The importance of DMARC in email security is not one to be overlooked. The bigger your company, the tighter the security must be. Becoming a DMARC expert can help you save time and money while securing your email domain.

Good for you, PowerDMARC already has a team of DMARC experts from all around the world, working tirelessly to improve the email security posture of thousands of organizations. If you are an online business looking to implement DMARC, book a demo today!

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