Free Email API for Developers and Startups
Send transactional emails from your app with Maileroo’s JSON Email API. Start with 3,000 free emails per month, use ready-made SDKs, and track every send from one straightforward platform.
The Developer-First Email API
A powerful JSON API to send basic, bulk, or scheduled emails with attachments, inline images, and Handlebars templates. We provide a 99.90% uptime guarantee, ready-to-use SDKs, and a platform built for developers by developers. No enterprise BS.
Templates & Handlebars Support
We have built a powerful template system that allows you to create dynamic emails with ease. Use our in-house template builder or implement your own templates using Handlebars syntax. Personalize your emails with dynamic tags and create engaging content that resonates with your audience.
Bulk & Scheduled Emails
Send bulk emails to your users with ease. Our email API allows you to send up to 500 emails at once, ensuring that your messages reach your audience quickly and efficiently. Schedule emails to be sent at a later time, making it easy to send important notifications or updates to your users.
Easy Integration & SDKs
Our free JSON-based email API is easy to integrate. With ready-to-use SDKs for PHP, Laravel, Node.js, Python, Go, .NET, Java, and more, you can quickly add email functionality without complex setup. Our platform is built for developers by developers, ensuring a smooth integration experience.
Attachments & Inline Images
Easily include attachments and inline images in your emails. Our email API supports file attachments and inline images, allowing you to send rich content directly to your users' inboxes. Enhance your emails with images and files that provide additional context and value to your messages.
Custom Headers & Tags
Add custom headers and tags to your emails for better organization and tracking. Our email API allows you to include custom headers in your requests, enabling you to categorize and manage your emails effectively. Use tags to track the status of your emails and monitor their delivery.
3,000 Emails/Month Free
Our free email API offers a generous free tier, allowing you to send up to 3,000 emails per month without any cost. This makes it easy for developers and businesses to get started with email functionality without worrying about expenses. Upgrade to our paid plans as your needs grow.
Start Sending in the Language You Already Use
Use Maileroo’s SDKs and libraries to connect your application faster. Choose from PHP, Node.js, Python, Go, cURL, and more.
All the Tools You Need to Send Emails
SMTP Relay & Email API
Send your messages the way you prefer, whether via API or SMTP. Both integrate smoothly with your systems and are built for simplicity.
Real-time Logging
Track every email in real time—from sends and deliveries to opens and clicks. Troubleshoot faster with complete event details.
Insights & Analytics
Understand how your campaigns perform with metrics like open rates, clicks, and bounce data to fine-tune your email strategy.
Custom Tracking Domains
Brand your tracking links with your own domain to build trust and boost deliverability. SSL included, quick setup guaranteed.
Webhooks
Keep your application instantly updated with webhooks for events like opens, clicks, and bounces, ensuring your data stays current.
Inbound Routing
Say goodbye to no-reply addresses. Forward incoming emails to your application or inbox, allowing you to handle replies and interactions seamlessly.
Fast to Test.
Ready to Build With.
Maileroo gives developers a straightforward JSON Email API for transactional email.
Start with 3,000 free emails per month. Pick the SDK that fits your stack. Add templates, attachments, tags, custom headers, and webhooks when you need them.
No mail server project. No overbuilt platform. Just a cleaner way to send from your app.
Create Dynamic Emails
With Handlebars Templates
Build reusable templates with variables, loops, and conditional logic, then send them through Maileroo’s Email API.
Use them for receipts, alerts, onboarding emails, password resets, and other messages that need personal details without hardcoding every email.
Crafted for a Delightful Email Experience
Inbound Email Routing
Receive emails directly into your application with our inbound email routing service.
GDPR Compliant
Our servers are based in Europe, ensuring full GDPR compliance. Your privacy is our top priority.
Scalable Infrastructure
We run on a scalable infrastructure that can handle any volume of emails you throw at us.
High Deliverability
We prioritize maintaining a high IP reputation to ensure your emails land in the inbox.
Analytics & Logging
Track your email performance with our detailed analytics and logging features.
99.95% Uptime
We're committed to delivering reliable service with an impressive 99.95% uptime track record.
Friendly Email API & Webhooks
Developers love our easy-to-use API and webhooks for integrating email into their applications.
List Cleaning & Validation
Ensure your email list is clean and up-to-date with our list cleaning and validation service.
Branded Tracking Links
Customize your tracking links with your own domain to maintain brand consistency.
Why Developers Choose Maileroo
Helpful Support
Get real support when you need help with setup, sending, or delivery issues.
Reliable Infrastructure
Maileroo is built to support dependable application email, with a 99.90% uptime SLA.
Built to Scale
Start with a free tier, then grow into higher sending volumes without rebuilding your email stack.
Do More Than Send Email
Build, send, track, and manage application email from one platform. Start with 3,000 free emails per month and connect with SMTP or Maileroo’s Email API.
Get Started for FreeTrusted by Teams Sending Real Email at Scale
See how developers and businesses use Maileroo to send, manage, and monitor application email.
Reviews
Hear From Our Satisfied Customers
Don't just take our word for it. Read what our customers have to say about our service.
Vincent Turner
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See How Teams Use Maileroo
Explore customer stories from businesses sending transactional and marketing emails with Maileroo.
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Listen To Their Stories
Success Stories
Find out how Maileroo is helping thousands of businesses send transactional & marketing emails.
Ready to start sending emails?