Tamper-evident email logs for regulatory compliance
Built for financial services, healthcare, and enterprise legal requirements. Generate verifiable audit certificates proving critical notices reached their destination.

Cryptographic log store
Enterprise compliance
Timestamped audit trails
Engineered for developer velocity
Cryptographic hash verification
Every message dispatch is hashed and timestamped, creating an immutable chain of custody for legal verification.
Long-term archive retention
Retain detailed transmission metadata and delivery receipts for up to 7 years to meet compliance mandates.
Exportable compliance reports
Generate audit-ready PDF or CSV export bundles for security reviews and external regulators.
How it works
Send compliance messages
Dispatch legal notices, terms updates, and receipts via Mailofly's verified pipeline.
Track cryptographic timestamps
View immutable server handshake receipts and ISP delivery confirmation tokens.
Generate verification certificates
Download cryptographic proof of delivery for legal and regulatory audits.
Explore related features
Automated webhook events
Receive instant HTTPS event webhooks for every message state change with cryptographic HMAC signature verification and automatic retries.
Real-time deliverability radar
Continuous deliverability telemetry across Gmail, Yahoo, Microsoft 365, and corporate ISPs with early throttling warnings.
Instant bounce diagnostics
Automatic classification of soft vs. hard bounces with precise SMTP reply codes, server error messages, and remediation recommendations.
Ready to build with Auditability & event verification?
Join thousands of engineering teams delivering transactional and lifecycle email with blazing speed and zero downtime.