---
title: How Does the Addon Work?
description: "Basically, the addon adds a domain to your email server and [manage DNS records](https://wpemailmanager.com/documentation/dns-management/how-to-configure-dns-settings/) in Cloudflare if enabled. However, this behaves differently depending on whether the [Custom Server Configuration Addon](https://wpemailmanager.com/downloads/custom-server-configuration/) is enabled. In this article, the term: 1. *Network email…"
url: "https://wpemailmanager.com/docs/how-does-the-addon-work/"
updated: "2022-07-01"
category: Addons / Domain Manager
---

# How Does the Addon Work?

Basically, the addon adds a domain to your email server and [manage DNS records](https://wpemailmanager.com/documentation/dns-management/how-to-configure-dns-settings/) in Cloudflare if enabled. However, this behaves differently depending on whether the [Custom Server Configuration Addon](https://wpemailmanager.com/downloads/custom-server-configuration/) is enabled.

In this article, the term:

1. *Network email server* refers to the server configured in the [main plugin's settings](https://wpemailmanager.com/documentation/settings/general-settings/). (Network wide).
2. *Subsite email server* refers to the server configured in the [Custom Configuration Addon settings](https://wpemailmanager.com/documentation/custom-server-configuration/what-is-the-custom-server-configuration-addon/).

If the Custom Server Configuration addon is enabled, the domain is added to the subsite email server, not to the network email server.

**Note:** If a domain was added when the [custom server configuration](https://wpemailmanager.com/downloads/custom-server-configuration/) addon was enabled, then the addon was later on disabled, you cannot use the domain to create an email account unless it is also added to the network email server.