# Letterhead's Recipient Validation

## Recipient Validation is a built-in feature that helps ensure your subscriber list stays clean by verifying the validity of new email addresses.

### What It Does

- **Validates New Subscribers Automatically**  
  Email addresses added via CSV import, embed form, or your archive page are automatically checked before being added to your audience.

- **Runs Daily in the Background**  
  Validation occurs every 24 hours and targets only unvalidated emails.

- **Improves List Health & Deliverability**  
  Helps prevent sending to mistyped or fake addresses, protecting your sender reputation and reducing bounce rates.

**Note**: Invalid emails are marked with a **"cleaned"** status.

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### What It Doesn’t Do

- **Custom Signup Pages Are Not Supported**  
  Validation does **not** apply to email addresses submitted through **custom-built signup forms**.

- **No Re-Validation of Existing Subscribers**  
  Existing validated subscribers are not re-validated. Only new or unvalidated entries are checked.

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### Where to turn it on?

#### **Organization-Level**  
When enabled at the organization level, Recipient Validation applies to **all channels** under your account. This is a good option if you want list protection across the board without managing settings individually per channel.

#### **Channel-Level**  
You also have the flexibility to turn on Recipient Validation for a **specific channel only**. This is helpful if you want to test the feature on one channel first or only validate emails tied to certain newsletters.

Note: Recipient Validation is a **paid premium feature**. To enable it, please **reach out to your Account Manager** for more details.

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### Why Use It?

Enabling Recipient Validation helps:

- Improve your email deliverability

- Protect your sender reputation

- Avoid sending to invalid or fake addresses

- Reduce bounce-related suppression and email delivery issues

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### Where It Applies

| Source                    | Validated? |
| ------------------------- | ---------- |
| CSV Import                | ✅ Yes     |
| Archive Page Signups      | ✅ Yes     |
| Embed Form                | ✅ Yes     |
| Custom Signup Pages       | ❌ Not supported |

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**Need Help?**  
If you have questions or need assistance, please contact our support team at  [support@tryletterhead.com](mailto:support@tryletterhead.com)!