smtp-penetration-testing
Conduct comprehensive security assessments of SMTP (Simple Mail Transfer Protocol) servers to identify vulnerabilities including open relays, user enumeration, weak authentication, and misconfiguration.
Profile →npx skills add sickn33/agentic-awesome-skills --skill smtp-penetration-testing --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
> **⚠️ AUTHORIZED USE ONLY** > This skill is for educational purposes or authorized security assessments only. > You must have explicit, written permission from the system owner before using this tool. > Misuse of this tool is illegal and strictly prohibited. > **Mandatory confirmation gate** > Before running any command that probes, exploits, changes, persists on, extracts data from, or attempts credential access against a target: > 1. Ask the user to state the exact target URL, IP, account, or resource. > 2. Ask the user to confirm written authorization and the permitted scope. > 3. Show the exact command(s) and explain their expected effect. > 4. Wait for explicit confirmation in the current conversation. > > Without that confirmation, remain read-only and provide defensive guidance only. Prefer a sandbox, disposable VM, or controlled lab. > AUTHORIZED USE ONLY: Use this skill only for authorized security assessments, defensive validation, or controlled educational environments. # SMTP Penetration Testing ## Purpose Conduct comprehensive security assessments of SMTP (Simple Mail Transfer Protocol) servers to identify vulnerabilities including open relays, user enumeration, weak
- Purpose
- Prerequisites
- Required Tools
- Required Knowledge
- Required Access
- Outputs and Deliverables
- Core Workflow
- Phase 1: SMTP Architecture Understanding
- Phase 2: SMTP Service Discovery
- Phase 3: Banner Grabbing
- Phase 4: SMTP Command Enumeration
- Phase 5: User Enumeration
- Phase 6: Open Relay Testing
- Phase 7: Brute Force Authentication
Nmap with SMTP scripts sudo apt-get install nmap Netcat sudo apt-get install netcat Hydra for brute force sudo apt-get install hydra SMTP user enumeration tool sudo apt-get install smtp-user-enum Metasploit Framework msfconsole
What does the smtp-penetration-testing skill do?
Conduct comprehensive security assessments of SMTP (Simple Mail Transfer Protocol) servers to identify vulnerabilities including open relays, user enumeration, weak authentication, and misconfiguration.
How do I install it?
Run `npx skills add sickn33/agentic-awesome-skills --skill smtp-penetration-testing --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From sickn33/agentic-awesome-skills, a repository with 44,414 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.