One delivery path. Every way you send.
API, SMTP, inbound, audience, broadcasts, automations, templates, and signed webhooks — each with its own surface, all sharing the same queues, verification, and event trail.
Accept
API, SMTP, inbound MX, broadcasts, and automations follow one visible delivery path.
Verify
Domains, credentials, suppressions, content, and sender policy are checked before delivery.
Route
Messages move through Sendix queues, selected nodes, and direct-MX workers.
Observe
Logs, metrics, run history, webhooks, and replay tools stay attached to the original message.
Eight surfaces, one platform.
Each feature has a focused job. Click through to see how it works.
Email API
Send transactional mail with one authenticated HTTP request.
SMTP
Use STARTTLS and API-key auth with existing mailers.
Inbound
Receive incoming mail as parsed, routable JSON.
Automations
Build controlled email workflows with waits and branches.
Audience
Manage contacts, preferences, tags, and segments.
Broadcasts
Send audience-backed campaigns through delivery controls.
Templates
Version templates and preview variables before shipping.
Webhooks
Subscribe to signed delivery events with replayable logs.
Grouped the way teams actually work.
Developer surfaces
REST API, SMTP credentials, templates, webhooks, and docs are built for teams integrating from product code.
Lifecycle surfaces
Audience, broadcasts, and automations share contact data, templates, suppression checks, and event trails.
Delivery operations
Domain verification, node health, direct-MX routing, and queue controls keep delivery behavior visible.
Trust controls
HMAC events, API keys, TLS, replay controls, and audit-oriented status keep customer workflows defensible.
Ready to send your first email?
25,000 emails free every month. No credit card required. Upgrade only when you outgrow the free tier — and we will let you know when that time comes.
Managed SaaS platform · Native SMTP engine · SOC 2 in progress