smtp-user-enum is a command-line tool used to enumerate valid usernames on mail servers that are vulnerable to VRFY, EXPN, or RCPT TO enumeration attacks. These attacks exploit vulnerabilities in the ...

smtp-user-enum is a tool used in Kali Linux for enumerating valid users on an SMTP server. It helps identify which email addresses exist on a server by using a technique known as "SMTP enumeration." ...

Kali Linux is a tool for information security tasks like penetration testing, offering over 600 tools for free and open-source use. Understanding Kali Linux is crucial for hacking and penetration ...