# Inbox Mail Send API - Simple & Reliable Email Delivery 📧 > **Powerful transactional email API with enterprise-grade SMTP infrastructure** Send emails effortlessly with our high-deliverability API. Perfect for developers who need reliable email delivery without the complexity of managing SMTP servers. --- ## 🚀 Why Choose Inbox Mail Send API? ✅ **High Deliverability** - Enterprise SMTP infrastructure with automatic account rotation ✅ **Lightning Fast** - Real-time sending, no queue delays ✅ **Proxy Support** - Enhanced privacy and improved delivery rates ✅ **HTML & Plain Text** - Full support for both email formats ✅ **Simple Integration** - One endpoint, minimal code ✅ **No Configuration** - No DNS, SPF, or DKIM setup required --- ## 🎯 Quick Start Send your first email in seconds: ```javascript // Node.js / JavaScript const axios = require('axios'); const options = { method: 'POST', url: 'https://inbox-mail-send-api.p.rapidapi.com/send', headers: { 'Content-Type': 'application/json', 'X-RapidAPI-Key': 'YOUR_API_KEY', 'X-RapidAPI-Host': 'inbox-mail-send-api.p.rapidapi.com' }, data: { sendto: 'customer@example.com', title: 'Welcome to Our Service!', body: '

Hello!

Thanks for signing up.

', ishtml: 'true', replyTo: 'support@yourcompany.com', name: 'Your Company' } }; axios.request(options) .then(response => console.log(response.data)) .catch(error => console.error(error)); ``` ```python # Python import requests url = "https://inbox-mail-send-api.p.rapidapi.com/send" payload = { "sendto": "customer@example.com", "title": "Welcome to Our Service!", "body": "

Hello!

Thanks for signing up.

", "ishtml": "true", "replyTo": "support@yourcompany.com", "name": "Your Company" } headers = { "Content-Type": "application/json", "X-RapidAPI-Key": "YOUR_API_KEY", "X-RapidAPI-Host": "inbox-mail-send-api.p.rapidapi.com" } response = requests.post(url, json=payload, headers=headers) print(response.json()) ``` ```php // PHP <?php $curl = curl_init(); curl_setopt_array($curl, [ CURLOPT_URL => "https://inbox-mail-send-api.p.rapidapi.com/send", CURLOPT_RETURNTRANSFER => true, CURLOPT_POST => true, CURLOPT_HTTPHEADER => [ "Content-Type: application/json", "X-RapidAPI-Key: YOUR_API_KEY", "X-RapidAPI-Host: inbox-mail-send-api.p.rapidapi.com" ], CURLOPT_POSTFIELDS => json_encode([ "sendto" => "customer@example.com", "title" => "Welcome to Our Service!", "body" => "

Hello!

Thanks for signing up.

", "ishtml" => "true", "replyTo" => "support@yourcompany.com", "name" => "Your Company" ]) ]); $response = curl_exec($curl); curl_close($curl); echo $response; ?> ``` --- ## 📋 API Parameters ### Request Body (JSON) | Parameter | Type | Required | Description | Example | |-----------|------|----------|-------------|---------| | `sendto` | string | ✅ Yes | Recipient email address | `"user@example.com"` | | `title` | string | ✅ Yes | Email subject line | `"Welcome aboard!"` | | `body` | string | ✅ Yes | Email content (HTML or plain text) | `"

Hello!

"` | | `ishtml` | string | ❌ No | Set to `"true"` for HTML emails, `"false"` for plain text | `"true"` (default: `"false"`) | | `replyTo` | string | ❌ No | Reply-to email address | `"support@example.com"` | | `name` | string | ❌ No | Sender display name | `"Company Name"` | --- ## 📤 Response Format ### Success Response (200 OK) ```json { "success": true, "message": "Email sent successfully" } ``` ### Error Responses **400 Bad Request** - Invalid input ```json { "error": "Missing required fields: sendto, title, body" } ``` **401 Unauthorized** - Invalid API key ```json { "error": "Unauthorized - Request must come through RapidAPI" } ``` **500 Internal Server Error** - Sending failed ```json { "success": false, "error": "Error sending email: SMTP connection failed" } ``` --- ## 💡 Use Cases ### 1. **Transactional Emails** Send order confirmations, receipts, and shipping notifications ```json { "sendto": "customer@email.com", "title": "Order #12345 Confirmed", "body": "

Thank you for your order!

Total: $99.99

", "ishtml": "true" } ``` ### 2. **Password Resets** Secure password reset links ```json { "sendto": "user@email.com", "title": "Reset Your Password", "body": "

Click here to reset: Reset Link

", "ishtml": "true", "replyTo": "noreply@yourapp.com" } ``` ### 3. **Welcome Emails** Onboard new users ```json { "sendto": "newuser@email.com", "title": "Welcome to Our Platform!", "body": "

Welcome!

Get started with our quick guide...

", "ishtml": "true", "name": "Your App Team" } ``` ### 4. **Notifications & Alerts** System alerts and monitoring notifications ```json { "sendto": "admin@company.com", "title": "Server Alert: High CPU Usage", "body": "Server CPU usage exceeded 90% at 14:32 UTC", "ishtml": "false" } ``` ### 5. **Marketing Campaigns** Send targeted promotional emails ```json { "sendto": "subscriber@email.com", "title": "Exclusive Offer - 50% Off!", "body": "<html>...[beautiful HTML template]...</html>", "ishtml": "true", "replyTo": "marketing@company.com" } ``` --- ## 🎨 HTML Email Example ```html { "sendto": "customer@example.com", "title": "Your Monthly Report is Ready", "body": " <!DOCTYPE html> <html> <head> <style> .container { font-family: Arial, sans-serif; padding: 20px; } .header { background: #4CAF50; color: white; padding: 10px; } .content { margin: 20px 0; } .button { background: #008CBA; color: white; padding: 10px 20px; text-decoration: none; border-radius: 5px; } </style> </head> <body>

Monthly Report

Hi there,

Your monthly analytics report is ready!

View Report

</body> </html> ", "ishtml": "true", "replyTo": "reports@yourapp.com", "name": "Analytics Team" } ``` --- ## ⚡ Features & Benefits ### **Automatic SMTP Rotation** Our system automatically rotates between multiple SMTP accounts to ensure maximum deliverability and avoid rate limits. ### **Proxy Network** All emails are sent through our proxy network for enhanced privacy and better delivery rates. ### **No Infrastructure Management** Forget about managing SMTP servers, DNS records, SPF, DKIM, or DMARC. We handle everything. ### **Real-Time Delivery** Emails are sent immediately - no queues, no delays. Perfect for time-sensitive transactional emails. ### **High Deliverability** Enterprise-grade SMTP infrastructure with 1,900+ active accounts ensures your emails reach the inbox. --- ## 🔒 Security & Privacy - ✅ All API requests are encrypted with HTTPS - ✅ Authentication via RapidAPI secure key system - ✅ No email content is stored or logged - ✅ GDPR compliant - ✅ Proxy network for enhanced sender privacy --- ## 📊 Rate Limits Rate limits are managed by your RapidAPI subscription plan: - **Free Tier**: 50 emails/month - **Basic Plan**: 500 emails/month - **Pro Plan**: 5,000 emails/month - **Business Plan**: 50,000 emails/month *Need higher limits? Contact us for enterprise pricing.* --- ## 🛠️ Testing Your Integration Use our test endpoint to verify your integration: ```bash curl --request POST \ --url https://inbox-mail-send-api.p.rapidapi.com/send \ --header 'Content-Type: application/json' \ --header 'X-RapidAPI-Key: YOUR_API_KEY' \ --header 'X-RapidAPI-Host: inbox-mail-send-api.p.rapidapi.com' \ --data '{ "sendto": "your-test-email@gmail.com", "title": "Test Email", "body": "This is a test from Inbox Mail Send API!", "ishtml": "false" }' ``` **Expected Response:** ```json { "success": true, "message": "Email sent successfully" } ``` --- ## ❓ FAQ ### **Q: Can I send attachments?** A: Attachments are not currently supported. This API is designed for text and HTML emails only. ### **Q: Do you support email templates?** A: You can pass your own HTML templates in the `body` parameter. Template management features may be added in the future. ### **Q: What about tracking opens and clicks?** A: Email tracking is not included by default to ensure privacy. You can implement your own tracking pixels in your HTML. ### **Q: Can I use my own domain for sending?** A: Currently, emails are sent from our managed SMTP accounts. Custom domain support may be available in enterprise plans. ### **Q: Is there a bulk send endpoint?** A: Not yet, but it's on our roadmap! For now, you can send multiple emails by making multiple API calls. ### **Q: What happens if an email fails to send?** A: The API will return a 500 error with details about the failure. Common causes include invalid recipient addresses or domain issues. --- ## 🚦 Error Handling Always check the response status code: ```javascript try { const response = await axios.post(url, data, { headers }); if (response.data.success) { console.log('✅ Email sent successfully'); } else { console.error('❌ Failed:', response.data.error); } } catch (error) { if (error.response) { // Server responded with error console.error('Status:', error.response.status); console.error('Message:', error.response.data.error); } else { // Network error console.error('Network error:', error.message); } } ``` --- ## 📞 Support Need help? We're here for you! - 📧 **Email**: support@postigo.net - 🌐 **Website**: https://postigo.net - 📝 **Documentation**: Check the API specification for detailed information --- ## 🎉 Get Started Now! 1. **Subscribe** to a plan that fits your needs 2. **Get your API key** from RapidAPI dashboard 3. **Make your first request** using the examples above 4. **Send emails** with confidence! --- ## 🌟 Why Developers Love Us > "Super simple API. Took me 5 minutes to integrate. Emails arrive instantly!" - *SaaS Developer* > "No more managing SMTP servers. This API just works." - *Startup Founder* > "Great deliverability rates. Our transactional emails never looked better." - *DevOps Engineer* --- ## 📈 Roadmap Coming soon: - 📎 Attachment support - 📊 Delivery status webhooks - 🎨 Email template library - 📤 Bulk send endpoint (send multiple emails in one request) - 📉 Analytics dashboard --- **Ready to send your first email? Subscribe now and get started in minutes!** 🚀 --- *Last Updated: October 2025* *API Version: 1.0.0*