Azure AD Application Proxy is a new feature of Azure AD Premium and Azure AD Basic. It allows publication of internal web-based application to provide internet access to authorized users in the corporate domain.

Azure Active Directory's Application Proxy provides secure remote access to on-premises web applications. After a single sign-on to Azure AD, users can access both cloud and on-premises applications through an external URL or an internal application portal. For example, Application Proxy can provide remote access and single sign-on to Sharepoint, Teams, and line of business (LOB) applications.