> ## Documentation Index
> Fetch the complete documentation index at: https://ahasend.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Blazing fast transactional emails. Developer-friendly APIs and SMTP relay with fair, transparent pricing.

# Welcome to AhaSend

AhaSend is a **developer-first transactional email service** built for modern applications. We provide blazing fast email delivery through our own infrastructure, with simple REST APIs and reliable SMTP relays.

<Info>
  **New to AhaSend?** Start with our [Quickstart Guide](/quickstart) to send your first email in under 5 minutes, or [create your free account](https://dash.ahasend.com/user/register) to get 1,000 free emails per month.
</Info>

## Why Choose AhaSend?

### 🚀 **Built for Developers**

* **[Clean, intuitive REST APIs](/api-reference)** and [SMTP relay](/smtp)
* **[Powerful CLI tool](/cli)** for development, testing, and automation
* **Sandbox Mode** for [SMTP](/smtp/sandbox) and [API](/send-api/sandbox) testing and development
* **[Engineering-led support](mailto:support@ahasend.com)** from real developers, not chatbots

### ⚡ **Blazing Fast Delivery**

* Below **2 seconds** delivery time to Gmail (99th percentile)
* **Independent**: Our own infrastructure, not a reseller of other services.
* **Reliable**: Delivering tens of millions of emails every month.

### 💰 **Fair & Transparent Pricing**

* **[Pay as You Go](https://ahasend.com/pricing)**: Pay exactly for what you send - no hidden fees
* **[Free dedicated IPs](/scale/dedicated-ips)** for high-volume senders (300k+ emails/month)

### 🛡️ **Enterprise-Ready Security**

* **[SSO](/security/sso)** with OpenID Connect (OIDC)
* **[Scoped API credentials](/api-reference/scopes)** with granular permissions
* **[Customizable data retention policies](/retention)**
  * From zero to 30 days [retention in our database](/retention).
  * [Indefinite retention](/retention/s3) of data, metadata and delivery log on your own S3.
* **[GDPR compliant](https://ahasend.com/dpa)**

## Quick Start Options

<CardGroup cols={3}>
  <Card title="REST API" icon="code" href="/send-api/send-email">
    Send emails using our modern HTTP API. Perfect for web applications and microservices.
  </Card>

  <Card title="SMTP Relay" icon="envelope" href="/smtp">
    Use our SMTP servers with any email library or application. Compatible with all programming languages.
  </Card>

  <Card title="CLI Tool" icon="terminal" href="/cli">
    Command-line interface for developers. Send emails, manage webhooks, test integrations locally.
  </Card>
</CardGroup>

## Popular Integration Guides

Get started quickly with your preferred technology stack:

<CardGroup cols={3}>
  <Card title="Node.js" icon="node-js" href="/smtp/nodejs">
    Integrate with Express, Next.js, or any Node.js application
  </Card>

  <Card title="Python" icon="python" href="/smtp/python">
    Django, Flask, FastAPI - we've got you covered
  </Card>

  <Card title="PHP" icon="php" href="/smtp/php">
    Laravel, Symfony, WordPress, and vanilla PHP examples
  </Card>

  <Card title="Go" icon="golang" href="/smtp/golang">
    Lightweight integration for Go applications
  </Card>

  <Card title="Ruby" icon="gem" href="/smtp/ruby">
    Rails and Ruby applications made simple
  </Card>

  <Card title="Command Line" icon="terminal" href="/smtp/cli">
    Send emails directly from your terminal or scripts
  </Card>
</CardGroup>

## Core Features

<AccordionGroup>
  <Accordion title="Email Tracking" icon="chart-line">
    Track email opens and link clicks with detailed analytics. See exactly how your users engage with your emails.
    [Learn more about tracking →](/tracking/open-tracking)
  </Accordion>

  <Accordion title="Webhooks" icon="webhook">
    Real-time notifications for all email events - delivery, bounces, opens, clicks, and more.
    [Explore webhooks →](/webhooks)
  </Accordion>

  <Accordion title="Email Routing" icon="route">
    Forward incoming emails to your application with our email routing feature.
    [Set up routing →](/routing)
  </Accordion>

  <Accordion title="Suppression Management" icon="shield-xmark">
    Automatically handle bounces, complaints, and unsubscribes to maintain your sender reputation.
    [Manage suppressions →](/api-reference/suppressions/get-suppressions)
  </Accordion>
</AccordionGroup>

## Need Help?

<CardGroup cols={2}>
  <Card title="API Reference" icon="book-open" href="/api-reference">
    Complete API documentation with examples and interactive playground
  </Card>

  <Card title="Support" icon="life-ring" href="mailto:support@ahasend.com">
    Get help from real engineers - no chatbots, no automated replies
  </Card>
</CardGroup>

<Tip>
  **Pro Tip:** All code examples in this documentation are tested and ready to use. Just replace the placeholder values with your actual API keys and domains.
</Tip>

## What's Next?

1. **[Create your account](https://dash.ahasend.com/user/register)** and get 1,000 free emails
2. **[Set up your domain](/domains)**, authorizing AhaSend to send emails on your behalf
3. Use our **[APIs](/send-api/send-email)** or **[SMTP](/smtp)** to send your first email
4. **[Configure webhooks](/webhooks)** to track email events in real-time

Ready to start sending emails that actually reach the inbox? Let's get you set up! 🚀