---
title: Configure custom preference center domain
slug: data-platform/docs/legacy-configure-custom-preference-center-domain
docTags: 
createdAt: 2026-08-10T12:05:15.000Z
---

:::hint{type="info"}
**Note**

Email and SMS channels are legacy features and not offered to new customers.
:::

To personalize your branding further, you can configure a custom domain in Optimizely Data Platform (ODP).

## Prerequisites

- You must have the option to update your domain's DNS records.
- You must have access to one of the following emails to enable secure links:
  - [administrator@yoursite.com](mailto\:administrator@yoursite.com)
  - [hostmaster@yoursite.com](mailto\:hostmaster@yoursite.com)
  - [postmaster@yoursite.com](mailto\:postmaster@yoursite.com)
  - [webmaster@yoursite.com](mailto\:webmaster@yoursite.com)
  - [admin@yoursite.com](mailto\:admin@yoursite.com) 

## Create a custom domain

To create a custom domain for your preference center, complete the following: 

1. Go to **Settings > Email Settings > Preference Centers**.
2. Click **Edit** on an existing preference center or click **New Preference Center** to create one. For information, see [Design your preference center](docId\:JORRWPVj2LAwnVYZc9MPg). 
3. Expand **Domain Name** under **Customize your preference center URL**. Click **Create Custom Domain** from the **Domain & Subdomain** drop-down list. 
4. Enter your domain name. This should be a domain you own, like *preferences.acme.com.*
5. Click **Create**.
6. Click **Verify Custom Domain** to verify the custom domain. 

![](https://api.archbee.com/api/optimize/BrbvVORKJ5iIeSMZye5kI/RicnHoSykWwNuhyQOrMvX-20260720-145654.png)

## Update CNAME records

You must update the CNAME records of your custom domain to redirect traffic to the correct URL. Use the values provided for **Type**, **Hostname**, and **Value** to make this update in your DNS provider. Contact [Optimizely Support](docId\:bdIN0-xeyJqQDBKgW0eBV) if you cannot find any of the field values. 

![](https://api.archbee.com/api/optimize/BrbvVORKJ5iIeSMZye5kI/woyb8J2_yVtakbMCdSRNm-20260720-145654.png)

## Send a domain verification email

Amazon Web Services (AWS) for ODP sends an email to all listed addresses with secure links to ensure ownership of the custom domain. Click **Send Emails** to send the emails. The recipients must click one of the links to confirm ownership before publishing the preference center.   

![](https://api.archbee.com/api/optimize/BrbvVORKJ5iIeSMZye5kI/d_wHINDwcIDLilU1H80tH-20260720-145654.png)

## Validate and verify records

Go to **Domains & IPs** and click **Verify All DNS Records** to check if your custom domain was authenticated by the system. The authentication can take up to 15 seconds. After verification, the status for the associated records becomes green.

:::hint{type="info"}
**Note**

Although DNS or SSL changes typically take less than an hour to propagate, some can take up to 24 hours. If the propagation does not occur, the authentication process fails. If you are not successful but are confident that the configuration is correct, retry the authentication later.
:::