A spam trap is the inclusion of an option in an online form that is preselected by default with the expectation that the user will fail to notice. If the form is submitted with the option selected, the user has given permission to be sent what will be seen as spam from the user.s point-of-view. To avoid spam traps, make a habit of reading the entire form and be alert to boxes that may need to be unchecked
An unused email address that is used online to gather any spam messages. For example, signing up for a newsletter or internet forum with a spam trap will keep a user's "real" email address hidden.
Email addresses that have been specifically created to detect individuals who have illegally scraped or collected email addresses. The belief is that any email sent to a spam trap address is indeed Spam, as the email address is not usually used as a real email address.
Spam trap is an email address set up by a spam fighter to capture unsolicited email ads for the purpose of tracking spammers. A spam tram is also an option on an online form that is pre-selected by default, so that unwary users opt-in to receive spam. It can also be used to refer to a software filter that blocks email addresses known to send spam.