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✦ Modern Email Infrastructure

Design Beautiful Emails Send Them with Code

Mailzeno lets you create stunning templates, integrate with a powerful API, and deliver transactional emails at scale with full control, visibility and reliability.

SMTP & API

Send emails with your own SMTP

Connect Gmail, Zoho, Outlook, or any custom SMTP. Send transactional emails from a clean dashboard.

TEMPLATES

Reusable email templates

Create, edit, and reuse templates for OTPs, invoices, and alerts across every workflow.

Use Mailzeno withany framework

Quick start
SMTP setup
Write with AI
API reference
Email logs
Insights

Open source from day one

MailZeno is built in the open. Transparent architecture, auditable core, and community-driven development. Fork it, contribute, self-host it you’re always in control.

@mailzeno

Built in Public • Devloper Friendly.

Simple Integration Production Ready.

Use our SDKs or deploy serverless Secure, scalable and ready for real-world workloads.

Node.js
1import MailZeno from "@mailzeno/client"; 2 3const mz = new MailZeno("mz_api_xxxxxxxx"); 4 5await mz.emails.send({ 6 from: "hello@yourapp.com", 7 to: "user@example.com", 8 subject: "Welcome 👋", 9 html: "<strong>Hello world</strong>" 10});

Multi-SMTP support

Connect Gmail, Zoho, Outlook, or any custom SMTP server.

Secure by design

Encrypted credentials and strict usage limits.

Templates & APIs

Reusable templates and SDK-ready APIs.

Delivery logs

Track sent emails, failures, and errors in real time.

Ready to send your first email?

Start free. Upgrade only when you need higher limits.

Forms Now Live

Build forms, collect submissions, and trigger emails in one flow.

Your forms module is ready in MailZeno. Create a form, share it publicly, and manage submissions from your dashboard.

Hosted Form Pages

Share public form URLs instantly with built-in anti-spam protection.

Submission to Email Workflows

Trigger transactional emails from submissions without writing backend glue.

Public API Key Support

Use form-level public keys for client-side integrations safely.