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DigiCert Acquires Valimail to Strengthen Identity-Based Anti-Phishing

Valimail acquired by DigiCert

AcquisitionEmail Authentication Solutions

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Acquired

Valimail

Computer and Network Security

Undisclosed amount

September 16, 2025

DigiCert logo
Acquirer

DigiCert

Computer and Network Security

DigiCert has acquired Valimail for an undisclosed amount, integrating a leading identity-based anti-phishing solution into its digital trust portfolio. Valimail, established in 2015, specializes in providing a complete, cloud-native platform for validating and authenticating sender identity. Its technology is crucial for stopping phishing attacks, protecting brands, and ensuring compliance, authenticating billions of messages monthly for major organizations including Uber, Fannie Mae, WeWork, and the U.S. Census Bureau.

This strategic acquisition significantly expands DigiCert's capabilities as a global provider of digital trust. While DigiCert is known for its comprehensive digital certificate and authentication solutions, the addition of Valimail’s expertise in DMARC enforcement and Brand Indicators for Message Identification (BIMI) enhances its offerings to cover critical email authentication needs. The integration aims to deliver a more robust, end-to-end digital trust solution, addressing the growing threat of phishing and brand impersonation.

The combination of Valimail's pioneering email authentication platform, which has garnered over a dozen prestigious cybersecurity technology awards, with DigiCert's established scale and credibility, creates substantial synergies. This corporate acquisition is focused on bringing together complementary technologies to offer customers a unified approach to securing their digital communications. The merged entity will be better positioned to automate DMARC, SPF, and DKIM enforcement, simplifying compliance and strengthening defenses against evolving cyber threats.

Moving forward, the combined organization is poised to deliver enhanced security and trustworthiness across the digital landscape. By extending its zero-trust capabilities to include comprehensive email authentication, DigiCert and Valimail will empower businesses to protect their digital identities more effectively, improve email deliverability, and maintain greater control over their brand reputation in an increasingly complex online environment.

Buying signals & intent

Our AI suggests Valimail may be interested in:

Email Security
DMARC Management
SPF Configuration
BIMI Implementation
Cybersecurity Tools

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