Herald
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Herald

Always in flight

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

Transactional send API

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

Delivery tracking

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

Deliverability recommendations

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