The terms temporary email and disposable email are often used interchangeably. In practice, both generally describe addresses intended for short-term use. Some providers offer longer retention, while others delete inboxes quickly. Before using one, check how long the address lasts and whether messages are private or potentially accessible to other users.
For practical use, always review the provider rules and avoid sharing sensitive information through temporary inboxes. A temporary address is best suited to low-risk, short-term interactions.