---
title: "Lambda Region (Deprecated)"
description: "The lambdaRegion option is deprecated because CloudFront now handles automatic routing, so you no longer need to set a region for the Topol Plugin."
url: https://docs.topol.io/email-editor/guide/lambda-region.html
---

# Lambda Region (Deprecated)

> **DEPRECATED**
>
> The `lambdaRegion` configuration option has been **deprecated** as of October 2025. This option is no longer necessary and will be ignored if provided.

## What Changed?

Previously, users could manually select between `eu-central-1` (Europe) and `us-east-1` (USA) regions for Lambda function execution.

As of November 2025, the Topol Email Editor backend infrastructure now uses **CloudFront CDN** with automatic geographic routing. CloudFront intelligently routes requests to the nearest AWS region, providing:

-   **Automatic optimization**: No manual configuration needed
-   **Lower latency**: Requests are automatically routed to the closest edge location
-   **Global coverage**: Better performance worldwide without region selection

## Migration Guide

If your code currently uses `lambdaRegion`:

```ts
// Old code (no longer needed)
{
  lambdaStage: "production",
  lambdaRegion: "eu-central-1"  // This will be ignored
}
```

Simply remove the `lambdaRegion` option:

```ts
// New code
{
  lambdaStage: "production";
}
```

**Note**: Existing code that includes `lambdaRegion` will continue to work without errors. The option is simply ignored. However, we recommend removing it from your configuration for cleaner code.