One practical way to reduce spam is to keep your main mailbox for important contacts and use a temporary address for low-trust, one-time interactions. This does not guarantee anonymity or eliminate tracking, but it can keep marketing messages away from your primary inbox. Review the terms and privacy practices of the temporary email provider before use.
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.