Spam traps are email addresses created specifically to catch spammers. These addresses are not used for any legitimate communication and any email received by them is automatically flagged as spam. There are two main types of spam traps:
Pristine traps: These are email addresses that were never used for any legitimate purpose. Recycled traps: These are old email addresses that were once valid but have since been abandoned and repurposed as traps.
Sending emails to spam traps can severely damage a sender's reputation and lead to blacklisting.