# Send MailCheck Email Verification to your agent
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
## Fast path
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
## Suggested prompts
### New install

```text
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Then review README.md for any prerequisites, environment setup, or post-install checks. Tell me what you changed and call out any manual steps you could not complete.
```
### Upgrade existing

```text
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Then review README.md for any prerequisites, environment setup, or post-install checks. Summarize what changed and any follow-up checks I should run.
```
## Machine-readable fields
```json
{
  "schemaVersion": "1.0",
  "item": {
    "slug": "mailcheck-email-verification",
    "name": "MailCheck Email Verification",
    "source": "tencent",
    "type": "skill",
    "category": "开发工具",
    "sourceUrl": "https://clawhub.ai/bnuyts/mailcheck-email-verification",
    "canonicalUrl": "https://clawhub.ai/bnuyts/mailcheck-email-verification",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/mailcheck-email-verification",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=mailcheck-email-verification",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "README.md",
      "SKILL.md",
      "index.js",
      "package.json"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "slug": "mailcheck-email-verification",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-05-05T06:11:07.915Z",
      "expiresAt": "2026-05-12T06:11:07.915Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=mailcheck-email-verification",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=mailcheck-email-verification",
        "contentDisposition": "attachment; filename=\"mailcheck-email-verification-1.1.0.zip\"",
        "redirectLocation": null,
        "bodySnippet": null,
        "slug": "mailcheck-email-verification"
      },
      "scope": "item",
      "summary": "Item download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this item.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/mailcheck-email-verification"
    },
    "validation": {
      "installChecklist": [
        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
      ]
    }
  },
  "links": {
    "detailUrl": "https://openagent3.xyz/skills/mailcheck-email-verification",
    "downloadUrl": "https://openagent3.xyz/downloads/mailcheck-email-verification",
    "agentUrl": "https://openagent3.xyz/skills/mailcheck-email-verification/agent",
    "manifestUrl": "https://openagent3.xyz/skills/mailcheck-email-verification/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/mailcheck-email-verification/agent.md"
  }
}
```
## Documentation

### MailCheck Email Verification

Verify email addresses with the MailCheck API - comprehensive email validation with syntax, disposable, DNS, and SMTP checks.

### Features

Single Email Verification - Verify one email at a time
Bulk Verification - Verify up to 100 emails in one request
Authenticity Analysis - Detect phishing, spoofing, and email fraud
Risk Scoring - 0-100 score with risk level (low/medium/high)

### email-verify - Verify single email

Verifies a single email address.

Parameters:

email (required): Email address to verify
api_key (optional): MailCheck API key (falls back to MAILCHECK_API_KEY env var)

Example:

email-verify email="user@example.com" api_key="sk_live_..."

### email-bulk-verify - Bulk verification

Verifies up to 100 email addresses in one request.

Parameters:

emails (required): Array of email addresses
api_key (optional): MailCheck API key

Example:

email-bulk-verify emails="[user1@example.com, user2@gmail.com]" api_key="sk_live_..."

### email-auth-verify - Email authenticity analysis

Analyzes email headers for spoofing, phishing, and CEO fraud.

Parameters:

headers (required): Email headers to analyze
trusted_domains (optional): Domains for lookalike detection
api_key (optional): MailCheck API key

Example:

email-auth-verify headers="From: sender@example.com\\nReceived: ..." trusted_domains="[company.com]"

### Environment Variables

Set MAILCHECK_API_KEY with your MailCheck API key to avoid passing it on every command.

### Installation

This skill is available on ClawHub.

clawhub install mailcheck-email-verification

### API Reference

See full API documentation: https://api.mailcheck.dev/docs

### Repository

Source code: https://github.com/bnuyts/mailcheck-skill

### License

MIT
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: bnuyts
- Version: 1.1.0
## Source health
- Status: healthy
- Item download looks usable.
- Yavira can redirect you to the upstream package for this item.
- Health scope: item
- Reason: direct_download_ok
- Checked at: 2026-05-05T06:11:07.915Z
- Expires at: 2026-05-12T06:11:07.915Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/mailcheck-email-verification)
- [Send to Agent page](https://openagent3.xyz/skills/mailcheck-email-verification/agent)
- [JSON manifest](https://openagent3.xyz/skills/mailcheck-email-verification/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/mailcheck-email-verification/agent.md)
- [Download page](https://openagent3.xyz/downloads/mailcheck-email-verification)