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smtp-penetration-testing
80 / 100 · Low risk
Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.
By ratnesh-maurya/cursor-claude-personas (GitHub) · coding · 12 stars · scanned at commit 975ca54
This skill should be used when the user asks to "perform SMTP penetration testing", "enumerate email users", "test for open mail relays", "grab SMTP banners", "brute force email cre...
Works with any agent that supports SKILL.md skills.
What this skill can do
Downloads and installs other software
The author does not mention this.
Found in 4 places.
Show 1 more
Runs commands on your computer
The author does not mention this. Expected for a coding skill.
Found in 21 places.
Show 17 more
- security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 124
nc TARGET_IP 25 - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 145
VRFY admin - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 166
smtp-user-enum -M VRFY -U /usr/share/wordlists/users.txt -t TARGET_IP - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 181
use auxiliary/scanner/smtp/smtp_enum - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 192
nmap --script smtp-enum-users -p 25 TARGET_IP - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 204
nmap -p 25 --script smtp-open-relay TARGET_IP - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 223
use auxiliary/scanner/smtp/smtp_relay - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 232
MAIL FROM:<> - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 247
hydra -l admin -P /usr/share/wordlists/rockyou.txt smtp://TARGET_IP - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 262
medusa -h TARGET_IP -u admin -P /path/to/passwords.txt -M smtp - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 268
use auxiliary/scanner/smtp/smtp_login - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 282
MAIL FROM:<attacker@test.com> - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 297
MAIL FROM:<ceo@target.com> - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 312
openssl s_client -connect TARGET_IP:25 -starttls smtp - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 327
dig TXT target.com | grep spf # SPF - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 410
nmap -sV -sC -p 25,465,587 mail.target.com - security-engineer/.claude/skills/smtp-penetration-testing/SKILL.md, line 440
smtp-user-enum -M VRFY -U users.txt -t 192.168.1.100 -p 25
and 1 more places
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'smtp-penetration-testing' ] || [ -L ~/.agents/skills/'smtp-penetration-testing' ]; then echo 'A skill folder named smtp-penetration-testing already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/ratnesh-maurya/cursor-claude-personas' "$d" && git -C "$d" checkout --quiet '975ca54f3da3ac38a3d9b4b5673e83271d8e3495' -- 'security-engineer/.claude/skills/smtp-penetration-testing' && mkdir -p ~/.agents/skills && cp -R "$d"/'security-engineer/.claude/skills/smtp-penetration-testing' ~/.agents/skills/'smtp-penetration-testing' && rm -rf "$d"; fi
Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'smtp-penetration-testing' ~/.claude/skills/'smtp-penetration-testing' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.
Badge for your README
The badge for ratnesh-maurya/cursor-claude-personas shows the score of its lowest-scoring skill.

[](https://zalavijaysinh.github.io/skilltrust/repos/ratnesh-maurya/cursor-claude-personas/)
Score history
| Date | Version | Score |
|---|
| 2026-11-12 | 975ca54 | 80 |
Also found in
Identical copies of this skill exist at:
- ratnesh-maurya/cursor-claude-personas/security-engineer/.cursor/skills/smtp-penetration-testing