If you replace Yahoo!'s default MX records or create an additional MX record for your domain name zone files with a higher priority than the Yahoo! mail servers (which are set to priority 20, and priority 30 — a higher priority would be a lower number than these), the email services provided in the plan you purchased will no longer function. All email addressed to your domain will be handled by the server you specify in the MX record. If you would like to reset your MX records to their default settings, you can do so on the Advanced DNS Settings page.

To access the Domain Control Panel:

1. Sign in to your Business Control Panel. (If you have not yet signed in with your Yahoo! ID and password, you'll be prompted to do so here.)
2. Once signed in, you will see modules for each of your domain names on the "Manage My Services" page. Select the "Domain Control Panel" link that corresponds to the domain whose record you wish to edit.

To restore MX records to their default settings:

1. Click the "Manage Advanced DNS Settings" link on your Domain Control Panel.
2. Click the "Reset to Default" button.
3. Confirm your choice by clicking "Reset to Default".

You'll return to the "Advanced DNS Settings" page, and your MX records will be restored to their default settings. While your changes will appear in the name servers within minutes, please be aware that it can take up to 72 hours for new records to propagate to all name servers on the Internet.

Learn how to edit and delete MX records.