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Zmail

Category: Security  ·  Sub-category: web-security  ·  Last updated:
Local-first email for agents: IMAP sync to maildir + SQLite (FTS5); CLI search, read, thread, who, attachments. Requires Node 20+, npm install (`npm install -g @cirne/zmail` or `npx @cirne/zmail`), native better-sqlite3 (rebuilt on first run if Node ABI mismatch), and IMAP credentials. OpenAI API key required for `zmail setup` / wizard, `zmail ask`, and `zmail inbox`—those features can send email-derived text to OpenAI. Optional `who --enrich` may call third-party search APIs. Source: github.com/cirne/zmail.
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

What zmail is: Email reimagined for agents and automation—not a human-first inbox UI. It syncs mail over IMAP, stores messages as files (maildir-style) and indexes them in local SQLite with FTS5. The primary surface is the CLI: search, read, thread, who, attachments, and zmail ask for natural-language questions (OpenAI). Same index powers every command—queries stay local and fast so the assistant can treat mail like a repository of communication artifacts (invoices, travel, Zoom summaries, etc.) instead of paging through Gmail.

What this skill does

Zmail is a community-contributed Claude Code skill in the web-security sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/zmail/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Zmail Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 213,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/zmail
curl -L https://claudskills.com/skills/zmail/SKILL.md \
  -o ~/.claude/skills/zmail/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/zmail/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/zmail/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\zmail\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Zmail Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/zmail/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Zmail skill do?
Local-first email for agents: IMAP sync to maildir + SQLite (FTS5); CLI search, read, thread, who, attachments. Requires Node 20+, npm install (`npm install -g @cirne/zmail` or `npx @cirne/zmail`), native better-sqlite3 (rebuilt on first run if Node ABI mismatch), and IMAP credentials. OpenAI API key required for `zmail setup` / wizard, `zmail ask`, and `zmail inbox`—those features can send email-derived text to OpenAI. Optional `who --enrich` may call third-party search APIs. Source: github.com/cirne/zmail.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Zmail skill?
Use Zmail when your Claude Code task falls under the Security category — specifically in the web security area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Zmail" or describe the task and let Claude pick). Browse related skills at /category/security/.
What is a Claude Code skill and how does the Zmail skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Zmail is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
LeoYeAI. (2026). Zmail [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/zmail/
BibTeX
@misc{zmail-2026,
  author    = {LeoYeAI},
  title     = {Zmail [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/zmail/}
}

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<script>
<script src="https://claudskills.com/embed/zmail.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/zmail.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Zmail"></iframe>

Security scan

Grade A · scanned 2026-11-01 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/zmail/#security)

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More Security skills

Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Security skills → Top 100 skills
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