Transactional & marketing email,
built for developers.

Domain verification, deliverability monitoring, campaigns and drip automation, webhooks, and SDKs in six languages — one platform to send, track, and scale every email your product sends.

// three lines to a delivered, tracked email
import { InFluxClient } from "@in-flux/sdk";

const client = new InFluxClient({ apiKey: "iflx_live_..." });

await client.send({
  from: "you@yourdomain.com",
  to: ["customer@example.com"],
  templateId: "welcome-email",
  variables: { firstName: "Ada" },
});

No credit card required · 20 emails/month free, forever