# email-verifier

> email-verifier — psyduckler-email-verifier. Use this tool when you need to verify the deliverability of an email address without actually sending an email. It solves problems of email bounce prevention, spam reduction, and contact list validation by checking SMTP connectivity and mailbox existence. The tool takes an email address as input and outputs a deliverability status, making it ideal for use cases like email list cleaning and validation.

Canonical page: https://skillsregistry.net/skills/psyduckler-email-verifier  
JSON: https://api.skillsregistry.net/v1/skills/psyduckler-email-verifier

## Description

Verify email address deliverability via SMTP without sending mail.

## Trust

- **Trust score (0–1):** 1.00
- **Verification tier:** scanned
- **Last scanned:** 2026-09-19

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** instructions
- **Runtime environment:** llm
- **Category:** communication
- **Updated:** 2026-09-19

## Source

- **Source listing:** [ClawHub](https://clawskills.sh/skills/psyduckler-email-verifier)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "psyduckler-email-verifier"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/psyduckler-email-verifier` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/psyduckler-email-verifier/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt