Programmatic Email Delivery
For Developers
High-performance transactional email delivery engine. Built for sub-15ms latency, SPF/DKIM verification safety-nets, and complete visibility of your delivery logs.
Interactive Sandbox
Choose your client environment, edit the payload, and trigger a test transmission to trace delivery performance in real-time.
import { Reloop } from '@reloop/sdk'; const reloop = new Reloop('rl_live_7x893k02j'); const { data, error } = await reloop.emails.send({ from: 'Welcome <onboarding@yourdomain.com>', to: 'newuser@gmail.com', subject: 'Welcome to Reloop!', html: '<h1>Welcome aboard, Jane!</h1>', tags: { category: 'welcome_series' }});Welcome aboard, Jane!
Thanks for creating a Reloop account. We are excited to help you manage and scale your programmatic communications. Let's send your first API call!
SMTP Relay & HTTP APIs
Connect using standard protocols. Run on a zero-latency, failover edge mesh network.
SMTP Relay & HTTP REST API
Connect via lightweight client SDKs or point your existing mailers straight to our relays. Zero configuration migration required.
99.99% Global Uptime
Reloop routes requests through distributed edge nodes. Built for failover safety during cloud zone anomalies.
Auto-SPF/DKIM Signing
We analyze your domains dynamically and automatically apply SPF alignments, custom DKIM signing keys, and DMARC validations.
Suppression List Webhooks
Instantly alerts your app webhooks if an address bounces or triggers a spam report, protecting your active mailing list quality.
Setup in 5 Minutes
No sales calls or enterprise agreements. Build and send immediately.
Generate Credentials
Create an account, verify domain TXT records, and generate private API keys in the dashboard interface.
Add Reloop SDK
Install our client library package into your local codebase dependencies:npm install @reloop/sdk
Trigger Sends
Point calls to the endpoints using payload templates, and view live audit trails in the platform dashboard.
3,000 emails for free
per month.
No credit card required. Connect your endpoints, optimize deliverability, and trigger emails at low-latency scale.