Among other things, one or more techniques and/or systems for providing a third party app through an email user interface are provided. That is, an email user interface may provide access to an email comprising email content (e.g., a message regarding meeting for dinner at the Emerald Tavern). The email content may be analyzed to identify an entity referenced by the email content (e.g., an Emerald Tavern entity). A user intent to accomplish a task may be determined based upon the entity. An action that may be performed to accomplish the task, and a third party app capable of performing the action may be presented through the email user interface (e.g., a restaurant reservation app capable of a reservation task). Responsive to selection of the third party app, the third party app may be executed within the email user interface without transitioning a user away from the immersive email experience.