Powerful email API for developers. High deliverability, real-time analytics, and simple integration. Start sending in minutes.
No credit card required. 1,000 free emails/month.
curl -X POST https://api.zsender.io/v1/emails/send \
-H "Authorization: Bearer $API_KEY" \
-H "Content-Type: application/json" \
-d '{
"from": "[email protected]",
"to": "[email protected]",
"subject": "Welcome to Acme",
"html": "<p>You're in.</p>"
}'Send emails in milliseconds with our optimized infrastructure. 99.9% uptime guaranteed.
DKIM, SPF, and DMARC configured automatically. Your emails land in the inbox, not spam.
Track opens, clicks, bounces, and more. Get instant insights into your email performance.
Clean REST API with simple integration. Send emails with a single HTTP request.
Get instant notifications for delivery events. Integrate with your workflow seamlessly.
Send from your own domain with full DNS verification and automatic SSL certificates.
Start for free, scale as you grow.
Perfect for getting started
For growing businesses
Set up your email infrastructure in minutes with our simple REST API.
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