This skill empowers security professionals and developers to perform deep security assessments on Simple Mail Transfer Protocol (SMTP) infrastructure. It provides a structured workflow covering service discovery, banner grabbing, user enumeration via VRFY, EXPN, and RCPT commands, and testing for unauthorized relaying. By integrating industry-standard tools like Nmap, Hydra, and Metasploit, it facilitates the detection of weak credentials, missing encryption, and inadequate email authentication records such as SPF, DKIM, and DMARC, ensuring mail servers are hardened against exploitation and spoofing.
主要功能
01Comprehensive open relay vulnerability testing and validation
02Advanced user enumeration using VRFY, EXPN, and RCPT methods
0346 GitHub stars
04Automated SMTP service discovery and banner information grabbing
05Authentication security analysis through automated brute-force simulation
06Evaluation of email authentication records including SPF, DKIM, and DMARC
使用场景
01Verifying the effectiveness of SPF, DKIM, and DMARC anti-spoofing policies
02Performing authorized security audits on corporate mail server infrastructure
03Hardening mail servers against spam exploitation and unauthorized relaying
