99.99% uptime · SOC 2 Type II certified

Email that always
lands in the inbox.

Lurstan Host is a high-deliverability SMTP relay built for developers. Send transactional and marketing email at scale with sub-second relay, real-time analytics, and an API you'll actually enjoy.

Pay once with crypto via Cryptomus · Build your own SMTP server in minutes

send_email.sh — bash

# Send your first email through Lurstan Host
curl "https://api.lurstanhost.com/v1/send" \
  -H "Authorization: Bearer lh_live_••••" \
  -d from="you@yourdomain.com" \
  -d to="customer@example.com" \
  -d subject="Welcome aboard 🚀"

✓ 202 Accepted — relayed in 0.41s · message id lh_9fa2c

Performance

Numbers that hold up under load

Infrastructure tuned obsessively for deliverability and speed — measured across billions of sends.

Inbox placement rate

Median relay time

Emails delivered / mo

Platform uptime SLA

Features

Everything you need to ship email

A complete sending platform — from authentication to analytics — without the enterprise bloat.

Inbox-first deliverability

Automatic SPF, DKIM, and DMARC alignment, dedicated and shared IP pools, smart warm-up, and real-time blocklist monitoring keep your reputation pristine so messages reach the inbox — not the spam folder.

Sub-second relay

A globally distributed sending network relays mail in under half a second, with intelligent queueing and retries built in.

Real-time analytics

Track opens, clicks, bounces, and spam complaints live. Drill into every event with webhooks and exportable logs.

Enterprise security

TLS 1.3 in transit, encryption at rest, scoped API keys, SSO, and SOC 2 Type II compliance out of the box.

Developer-first API & SMTP

Drop-in SMTP credentials work with any stack, or use our clean REST API and SDKs for Node, Python, Go, Ruby, and PHP. Templating, scheduling, batch sends, and idempotency keys are all first-class — with docs that don't make you guess.

How it works

Live in three steps

From signup to your first delivered email in under five minutes.

Verify your domain

Add a few DNS records and we'll auto-configure SPF, DKIM, and DMARC. Our checker confirms alignment in real time.

Grab your keys

Generate scoped API keys or SMTP credentials. Drop them into your app or any tool that speaks SMTP.

Send & monitor

Fire your first message and watch it land. Track every event live in the dashboard and via webhooks.

app.js — Node SDK

import { Lurstan } from '@lurstan/host';

const lh = new Lurstan(process.env.LH_API_KEY);

await lh.emails.send({
  from: 'hello@yourdomain.com',
  to: 'customer@example.com',
  subject: 'Your receipt',
  html: template('receipt', { order }),
}); // ✓ delivered

Email that alwayslands in the inbox.