---
title: Railway Integration
sidebarTitle: Railway
icon: "siRailway"
description: Configure services hosted on Railway to send emails using Reloop.
---
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[Railway](https://railway.app) simplifies hosting backends, databases, and cron jobs. Configure your Railway services to send emails via Reloop with environment variables.

---

## Step 1: Set Environment Variables in Railway

1. Go to your **Railway Project**.
2. Select the service that will send emails.
3. Click on the **Variables** tab.
4. Add the following variable:
   - **Name**: `RELOOP_API_KEY`
   - **Value**: `rl_your_api_key`
5. If using standard SMTP connections, also configure:
   - **Name**: `SMTP_HOST` → `smtp.reloop.sh`
   - **Name**: `SMTP_PORT` → `587`
   - **Name**: `SMTP_USER` → `reloop`
   - **Name**: `SMTP_PASS` → `rl_your_api_key`

Railway will automatically redeploy your service to apply the variables.

---

## Step 2: Code Integration

Retrieve the environment variables in your server code:

```typescript
const apiKey = process.env.RELOOP_API_KEY;
```