About
MailApi.dev is a developer-focused email infrastructure platform that helps you
- send inbox-ready transactional emails,
- verify email addresses in real time,
- create reusable templates,
- automate emails, and
- manage your email data — all with a simple, powerful API.
Start free with 5,000 emails.
✨ What You Can Do with MailApi.dev
📨 Transactional Email API
Deliver signup confirmations, password resets, OTPs, alerts, and mission-critical notifications without worrying about spam folder placement.
✔️ Real-Time Email Verification
Validate emails at signup or before sending. Reduce bounces, protect your sender reputation, and improve deliverability instantly. You can also save the email to your mailapi list.
🧩 Email Templates
Create and reuse templates with dynamic variables. Keep your branding consistent across all transactional emails.
📚 Email List Storage
Store and manage emails securely.
🔄 Email Automation
Trigger automated sequences based on user behavior. Build workflows without setting up complex infrastructure.
Examples:
Email new users 1 hour after registration
Email users with an offer immediately they cancel their subscription
Send discount offers to active free users
Build any workflow with simple API triggers
📣 Email Broadcasts
Send mass emails to multiple recipients or segments. Great for announcements, product updates, and user-specific campaigns.
👨💻 Developer-Friendly API
Integrate in minutes with clean, modern endpoints.
npm install mailapidev
💡 How MailApi.dev Helps You Reduce Churn & Increase MRR
Email automation lets you communicate with users at the most important moments of their lifecycle:
Reduce Churn
Send a “Don't go, Here is a Better Offer” email when a user cancels
Send a “Here is an Even Better Offer” email 3 days after a user cancels
Offer personalized discounts or alternatives
Re-engage inactive users with automated nudges
Inform users when payment fails and guide them to update billing
These small touchpoints significantly improve retention.
Increase MRR
Upsell paid plans to free users automatically
Offer time-limited discounts to hesitant buyers
Send onboarding sequences that increase product activation
Nurture new users into long-term paying customers
Automated lifecycle emails = higher conversions + better retention.
🔗 Try MailApi.dev
Dashboard: https://app.mailapi.dev/login