Enterprise Trust & Compliance
Security at Sendport
We treat security as our highest engineering priority. Learn how we safeguard your customer data, deliverability reputation, and API keys.
2048-Bit RSA DKIM Signatures
Every email is cryptographically signed at the edge using industry-standard 2048-bit RSA keys with full SHA-256 hash validation.
End-to-End TLS 1.3 Encryption
All SMTP transmissions and REST API requests are encrypted in flight using TLS 1.3 with modern forward-secret cipher suites.
Role-Based Scoped API Keys
Generate granular API credentials limited to sending only, template management, or domain administration to minimize blast radius.
Two-Factor Authentication (2FA TOTP)
Protect team accounts with mandatory time-based one-time password (TOTP) hardware tokens and Google Authenticator.
Manage 2FA & Audit Logs in Dashboard
Review live sign-in attempts and rotate your authentication keys.