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Time is running out! Your DMARC Adoption Journey in 2024: Impacts, Expectations, and Preparation


DMARC Adoption Progress in 2024

In 2024, the adoption of Domain-based Message Authentication, Reporting, and Conformance (DMARC) among big companies such as Google and Yahoo will continue to progress, bringing significant impacts on users, businesses, and the overall email security landscape. If you want to put things in prospective, Gmail and Yahoo owns combined 33% of global emails sent and received.

In this article, we are going to delve into the latest developments in DMARC adoption, its impact on users and other businesses, and essential steps to prepare for this industry-wide change.

Big companies like Google and Yahoo have been at the forefront of promoting DMARC adoption to enhance email security. In early 2024, they have intensified their efforts to implement DMARC at enforcement level, aiming to combat email spoofing, phishing, unauthorized use of their domains, and protecting their email customers from potential email-based attacks coming from 3rd party domains. As a result, the number of domains with published DMARC records has substantially increased, reflecting a growing commitment to email authentication and protection against email fraud.

While first stage of this change will allow any policy in DMARC, but we are expecting that companies will slowly move to reject emails without a valid DMARC record and a valid policy. it is essential that you review your DMARC implementation roadmap and ensure you are ready to have a full DMARC reject policy for your emails.

Impact on Users and Businesses


  • Enhanced Email Security: DMARC implementation by major companies translates to enhanced protection against phishing and email-based cyber threats for users.

  • User Trust and Confidence: As DMARC helps prevent fraudulent emails from reaching inboxes, users can have increased trust in the authenticity of emails received from trusted domains.


  • Improved Brand Protection: DMARC adoption among industry leaders sets a precedent for brand protection, encouraging other businesses to follow suit to safeguard their brand reputation and customer trust.

  • Reduced Risk of Email Fraud: As DMARC enforces strict email authentication, businesses benefit from reduced risk of domain impersonation and email fraud, preserving their credibility.

  • Improved Deliverability: Implementing DMARC correctly can improve email deliverability rates as it reduces the chances of emails being marked as spam or rejected.

  • Real-time monitoring and reporting: DMARC provides real-time reporting that offers insights into email authentication status and attempts to misuse your domain. This visibility allows to fine-tune email security strategies, respond promptly to threats, and continuously enhance defences.

  • Compliance and regulatory requirements: With the increasing focus on data protection and privacy regulations like GDPR and CCPA, ensuring the security of customer data has become paramount. Implementing DMARC aligns with regulatory requirements and demonstrates company's commitment to safeguarding sensitive information.

How to Prepare for the Change?


  1. Vigilance: Stay vigilant and cautious when interacting with emails, especially those claiming to be from trusted companies. Be mindful of email security best practices and report suspicious emails to the appropriate authorities.

  2. Awareness: Stay informed about the growing prevalence of DMARC and its role in safeguarding email communications, thereby contributing to a more secure online environment.


  1. DMARC Implementation: Proactively implement DMARC for your domains, starting with a "p=none" policy to monitor email authentication results and gradually moving towards a "p=reject" policy to enforce strict email authentication.

  2. Domain Authentication: Ensure proper SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) configuration in conjunction with DMARC to strengthen email security measures.

  3. Email Authentication Monitoring: Regularly monitor DMARC reports to identify unauthorized use of your domains and take appropriate actions to mitigate risks.

Email Service Providers:

  1. Support for DMARC: Email service providers should offer robust support for DMARC authentication, empowering businesses to seamlessly implement DMARC policies and manage authentication protocols.

  2. Educate Users: Provide educational resources and best practices to users and businesses regarding the importance of DMARC adoption and its role in fortifying email security.

How Can Spartans Security Help?

Spartans Security helps businesses by providing a managed service that enables clients to achieve and maintain DMARC compliance smoothly.

Spartans Security provides a turnkey service that aggregates the DMARC email reports for a client’s domains and details DMARC compliance per email source. The service also identifies issues and non-compliant email source details in the form of tasks and the remediation required to maintain or enable a DMARC reject policy per domain.


In conclusion, the progress of DMARC adoption in 2024, particularly among major companies like Google and Yahoo, signifies a fundamental shift towards bolstering email security and combating fraudulent email activities. As businesses and users navigate this transition, proactive preparation and awareness of the benefits of DMARC implementation will be essential for a more resilient and secure email ecosystem.

By embracing DMARC and fortifying email authentication practices, businesses and users can collectively contribute to a safer digital environment, bolstering trust and confidence in email communications while mitigating the threat of email-based cybercrimes.

If you have any questions, get in touch at

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