Spam trigger words are words or phrases commonly used in
spam email messages that can cause an email to be flagged as spam by email filters.
Examples of spam trigger words include "Viagra," "free money," "work from home," "earn extra cash," and "get rich quick." Other examples include "100% guaranteed," "bonus," and "Congratulations!" "Congratulations! You have been selected," "click below," and many more.
These words are often used in an effort to trick recipients into opening or interacting with the email, which is why spam filters often flag them as suspicious.