Technical Documentation

API references, integration guides, and technical documentation for CloudMails SMTP infrastructure

Getting Started

Quick Start Guide

Get up and running with CloudMails SMTP in 5 minutes. Authentication, first send, and basic configuration.

Beginner

SMTP Integration Guide

Complete integration guide for PHP, Python, Node.js, Go, and Ruby. Connection settings and sending examples.

Integration

API Reference

REST API Reference

Complete REST API documentation. Endpoints, authentication, request/response formats, and error handling.

API

Webhooks Guide

Real-time event notifications. Bounce webhooks, delivery confirmations, complaint alerts, and setup.

API

Technical References

SMTP Commands Reference

Complete SMTP command reference. EHLO, MAIL FROM, RCPT TO, DATA, and extension commands.

Reference

Authentication Setup

SPF, DKIM, and DMARC configuration. Step-by-step DNS setup and verification.

Reference

Error Codes Reference

Complete list of SMTP error codes and API error responses with troubleshooting guidance.

Reference