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    For SaaS apps

    Drop-in transactional send.

    REST send, outbound webhooks, templates, scheduled sends, one-click unsubscribe. The pieces a real product needs, without the integration cost.

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    01

    REST that mirrors what you already know

    POST /v1/messages with the SendGrid/Postmark/SES envelope shape. Idempotency keys, scheduled sends, templates, attachments all on the same endpoint.

    02

    Outbound webhooks with durable retry

    Subscribe to delivered / bounced / complained / failed events. Stripe-style HMAC signing, retry schedule 1m → 5m → 25m → 2h → 12h → 24h.

    03

    Trace per message, public-shareable

    Every send returns a UUID. Customer support can hand that URL to your developers; your developers can hand it to AI assistants.

    04

    One suppression list

    One list across every destination, enforced at send time. Bulk-import the list you bring; no copies to sync when you migrate providers.

    One HTTP call to get started

    Put a form on your site tonight. Wire your provider when you're ready.

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