Empowering over 20,000 global enterprises and startups
SmtpHost provides clean, high-performance SMTP relay servers and light transactional API webhooks. Keep your user verifications, invoices, and notification sequences running flawlessly.
99.99%
Uptime SLA
<150ms
Global Latency
Instant
Activation
Empowering over 20,000 global enterprises and startups
Two ways to deploy your email stream
Connect your existing SaaS platform, dashboard, or CRM systems instantly. Authenticate safely using classic SMTP credentials on recommended port 587.
Post lightweight, structured JSON objects over clean secure HTTPS endpoints. Built for responsive web applications, modern microservices, and fast code builders.
Engineered simple, focused on success
Easy setup blueprints for SPF, DKIM, and DMARC parameters.
Automatic block detection mechanics clean bouncing mails beforehand.
Trace delivery actions, error codes, and server response traces.
Separate high volumes with clean dedicated sender address ranges.
Intelligent system scaling balances transmission speeds automatically.
Direct support channels help monitor and guide your setup placement.
Drop in the SMTP relay or the REST endpoint and let the platform handle retries, warmups, and delivery health. Clean defaults, zero ceremony.
const SmtpHost = require('@smtphost/sdk'); const client = new SmtpHost({ apiKey: 'sh_token_live...' }); client.emails.send({ from: 'app@domain.com', to: 'user@domain.com', subject: 'Welcome', text: 'Ready to send!' });
from smtphost import Client client = Client(api_key="sh_token_live...") client.emails.send( from_="app@domain.com", to="user@domain.com", subject="Welcome", text="Ready to send!", )
curl -X POST https://api.smtphost.app/v1/send \ -H "Authorization: Bearer sh_token_live_ab81903c7ea" \ -H "Content-Type: application/json" \ -d '{ "from": "app@yourdomain.com", "to": "user@gmail.com", "subject": "Verification", "text": "Your token is 4201" }'
Unlock 1000 free transactional emails per month. No setup fees, zero card requirements required to sandbox.