Transactional emails that
feel like Laravel
Lettr is the developer-first email API. Send transactional emails at scale with a simple REST API, SDKs for every language, and real-time delivery analytics.
3,000 emails/month free. No credit card required.
Set it up once — never be
the bottleneck again
The visual editor isn't just for marketers — it's a developer benefit. Let your team iterate on emails while you ship features.
example/WelcomeMail.php
Built for developers
Fluent builder API
Chainable methods for building emails. Clean, readable, intuitive.
Template support
Send using pre-built templates with substitution data for personalization.
Attachments made easy
Attach files by path or raw data. PDF, CSV, images - all supported.
Event tracking
Track opens, clicks, bounces, and deliveries. Full visibility.
Smart inlining
CSS is automatically inlined for maximum email client compatibility.
Click & open tracking
Track opens, clicks, bounces, and deliveries. Full visibility.
Works for the whole team
Non-dev visual editor
Chainable methods for building emails. Clean, readable, intuitive.
Multi-language
Send using pre-built templates with substitution data for personalization.
Version control
Attach files by path or raw data. PDF, CSV, images - all supported.
Event tracking
Track opens, clicks, bounces, and deliveries. Full visibility.
Get started in minutes
Four steps to sending your first email.
No complicated setup.
1. Install the SDK
2. Initialize
3. Build your email
4. Send it
Simple, transparent pricing
Start free. Scale as you grow. No hidden fees.
Free
3,000 emails/mo · 100/day
- Shared IP pool
- Basic analytics
- Email & webhook support
- Community support
Compare plans
| Feature | Free | Pro | Enterprise |
|---|---|---|---|
| Monthly emails | 3,000 | 100K emails | Unlimited |
| Daily limit | 100 / day | No limit | No limit |
| Sending domains | 1 domain | 10 domains | Unlimited |
| Email API & SMTP | |||
| Webhook events | |||
| Analytics | Basic | Advanced | Advanced |
| Data retention | 7 days | 30 days | 30 days |
| Team members | |||
| Dedicated IPs | |||
| Priority support | |||
| SLA guarantee | |||
| SSO / SAML | TBA |