A honeypot email address is a trap used by internet service providers and anti spam organisations to detect unsolicited email activity. These addresses are not used by real users and are often hidden on websites or created as recycled accounts. When marketers send emails to them, it signals poor list practices such as scraping or buying data. Hitting honeypots can damage sender reputation, reduce deliverability, and lead to blacklisting. To avoid them, businesses should rely on permission based email collection and regular list hygiene practices.