Herald

Always in flight

Herald is Omni's self-hosted transactional email platform: a send API, delivery tracking, suppression management, and deliverability recommendations.

Deliver email through a simple API with idempotency, verified sending domains, and suppression built in.

Every message and its lifecycle events (delivered, bounced, complained) in one searchable log.

Actionable guidance per domain: verification gaps, bounce/complaint rates, and custom tracking subdomains.