The most secure email signature solution

Exclaimer is secure by design. With built-in protections, global certifications, and regular third-party audits, we deliver millions of emails securely every day.

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Certified. Compliant. Trusted.

We don’t just say we’re secure—we prove it. Our certifications confirm that Exclaimer meets the strictest global standards for data security, privacy, and compliance—so your organization can move forward with confidence.

SOC 2 Type II

We are SOC 2 Type II certified by the AICPA, ensuring high standards of security, availability, and confidentiality.

ISO/IEC 27001 & 27018

We’re ISO/IEC 27001 and 27018 certified, demonstrating that we manage sensitive data and protect personally identifiable information (PII) in the cloud through a rigorously maintained Information Security Management System (ISMS).

GDPR

We are fully compliant with the General Data Protection Regulation (GDPR), supporting your data protection and privacy obligations across the EU and EEA.

CCPA

We are committed to providing clear visibility into the privacy rights of California residents. Our practices adhere to the California Consumer Privacy Act of 2018 (CCPA).

HIPAA

We are HIPAA compliant, meeting U.S. federal standards for protecting and handling protected health information (PHI).

Cyber Essentials

Certified under the UK government-backed Cyber Essentials scheme, managed by the National Cyber Security Centre (NCSC), this accreditation demonstrates our commitment to defending against online threats.

CSA

We are certified by Cloud Security Alliance, following a rigorous independent assessment of our cloud service security controls.

SecurityScorecard

We’ve been awarded an “A” rating (100/100) by SecurityScorecard, recognizing our strong security posture and placing Exclaimer among the most secure cloud applications on the market.

Audits & Penetration Testing

We conduct regular penetration testing and independent third-party security reviews as part of our ISO 27001 and SOC 2-aligned security program.

Trusted by 9 million email accounts worldwide

Security

We protect data at every stage. Security is embedded from the start— DevSecOps engineers are involved in every build, ensuring risk is addressed before code ever goes live. Once in production, we deploy:

  • Advanced web application firewalls

  • Active DDoS protection at every gateway

  • Multi-factor authentication (MFA) via Microsoft and Google SSO

  • End-to-end TLS encryption for data in transit and at rest

  • Continuous network scanning to detect and resolve vulnerabilities early

Reliability

Exclaimer is a cloud-native platform designed for performance, reliability, and compliance. Our infrastructure spans 14 global data centers, grouped into six geographically separated active-active pairs. This architecture ensures:

  • High availability and built-in failover

  • In-region data residency to support compliance

  • Operational continuity—no matter where you are

We currently maintain an average uptime of 99.99%. If issues arise, we update our status page in real time—and resolve them fast.

Our security partners

We work with leading security organizations and independent auditors to stay ahead of threats and compliance standards.

Make your emails secure today

The most important communications happen over email. Go with the most trusted email signature software on the market.

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