Per the IRS Publication 3112, Registration of Web Sites with the IRS:

"To safeguard taxpayer information by more quickly identifying fraud schemes including phishing, the IRS requires Providers to register with the IRS all Internet Web sites from which information is collected from taxpayers, either directly or through third parties, and used by the Provider for federal returns that are filed electronically. Providers must submit the below information to the IRS prior to the Web site being accessible on the Internet, and submit any changes to previously provided information to the IRS within three (3) business days.

1. An EFIN for the Provider;

2. The name of a Principal or Responsible Official shown on the e-file application for the EFIN; and

3. The Uniform Resource Locators (URLs) of all Web sites from which the Provider collects information from taxpayers, either directly or through third parties, for electronic filing of federal returns.

Providers must login to e-services and navigate to the e-file Application. Click “Add/Delete URL” and proceed as instructed. If “Add/Delete URL” is not in the e-file Application Menu, click “EFIN Status” and select “Yes” in response to the Web site question. After saving, the “Add/Delete URL” link should be available on the “e-file Application” menu page."

As stated by the IRS in the QuickAlert from July 24, 2019: "All Authorized IRS e-file Providers who own or operate a website(s) that collects, transmits, stores or processes taxpayer information are required to register the URL(s) on your e-file Application." This would include your custom Drake Portals URL.

Contact the IRS or review the IRS' FAQ for more information about the registration requirements.