Email API
Email APIFast, Secure Email API for Transactional & Marketing Emails
Send OTPs, alerts, and campaigns from your application with high deliverability and full visibility.
Trusted by top teams.
What is Mailercloud Email API?
Mailercloud Email API allows your application to send emails automatically using API or SMTP.
It is built for teams that need reliable and fast email delivery for both transactional and marketing messages.
Use Mailercloud Email API for:
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Built for Engineering Excellence
Mailercloud provides the granular control you need to manage complex email workflows with total confidence.
Real-Time Message-Level Logs
Stop guessing and start knowing. Every API call is tracked with high-precision status updates.
- Deep Visibility: Track the exact path of every email from "Queued" to "Delivered" to "Opened".
- Instant Debugging: Access clear, human-readable error responses and SMTP codes to identify why a message bounced or failed instantly.
- Historical Data: Access historical sending data to identify trends and optimize your delivery performance over time.
Security & Reputation Management
We provide the infrastructure; you maintain the trust.
- Domain Authentication: Full, guided support for SPF, DKIM, and DMARC to prove to ISPs that your emails are legitimate.
- IP Allowlisting: Secure your account by restricting API and SMTP access to specific server IP addresses, preventing unauthorized relaying.
- Role-Based Access (RBAC): Assign specific permissions to team members, ensuring developers have API access while marketing teams manage templates.
Proactive Inbox Tracking
Go beyond delivery rates. Know if your emails are landing in the Inbox or being diverted to the Spam folder.
- Placement Insights: Identify spam or promotions placement before your users do.
- Early Warning System: Validate delivery behavior programmatically to catch ISP-specific issues before they impact your entire user base.
Developer-First Integration
Spend less time reading docs and more time shipping code.
- Hybrid Connectivity: Integrate via our modern RESTful API for deep application logic or use SMTP for legacy system support.
- Global Scalability: Our infrastructure is designed to handle sudden traffic spikes—like flash sales or security alerts—without adding latency.
- Webhooks (Events): Receive real-time POST requests to your application whenever an email is bounced, clicked, or complained about.
Why Teams Choose Mailercloud Email API
~1 sec
Transactional Delivery Speed
1,000+ / sec
Emails Sent Per Second
99%+
Transactional Delivery Rate
98%
Marketing Email Delivery Rate
Reliable email delivery for both transactional and marketing use cases
Visibility into delivery outcomes with Inbox Tracker
Built to support growing email volumes
Supported by a responsive technical team
Grow with Mailercloud
Make the most out of your email marketing campaigns with our AI-powered, customizable, and powerful email marketing tool. Get rid of all complications and grow your business with our easy-to-use features.
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