---
title: Configure multiple email domains
slug: configured-commerce/docs/configure-multiple-email-domains
docTags: 
createdAt: 2026-08-13T10:46:19.000Z
---

You can submit a request to configure multiple email domains in Configured Commerce.

:::hint{type="info"}
**⚠ ️ Coordinate this process with hosting support.**
You must coordinate the timing of steps 4 and 5 with hosting support to avoid a mismatch between the application settings outbound email addresses and the outbound SMTP settings, which may cause noticeable problems.
:::

Work with hosting support through the following steps:

1. In the Admin Console, go to **Administration >*System* > Settings > Site Configurations**.
2. In the Email Domain Name field under the Emails heading, provide the new domain name for outbound email.
3. Optimizely sets up a Mailgun configuration for that domain and provides DNS records the customer needs to create to validate the domain.
4. Customer/Partner updates application settings to use email addresses in the new domain.
5. Optimizely hosting support updates deployment settings for the application to route email through the new Mailgun domain.