Spam prevention and detection
Spam

It's important to note that even if a message is detected and classified as "spam", it is still delivered to its recipient. This can be disastrous if the spam in question carries illicit content and the user activates it (by looking at the email attachment, clicking on the web link).

However, this is often counterbalanced by the anti-spam tool used, which adds a "spam" or "super-spam" label to the subject line and deactivates suspected fraudulent links and content.