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Email Verify

ASecurity

Bulk verify customer email addresses using [Clearout](https://composio.dev/toolkits/clearout) or [Mailcheck](https://composio.dev/toolkits/mailcheck)

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  • Added May 27, 2026
data-aigobash

Works with

  • cli

Security analysis

A100/100

Scanned May 27, 2026

npx -y skills add composio-community/support-skills --skill email-verify --agent claude-code

Installs into .claude/skills of the current project.

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SKILL.md
---
name: email-verify
description: "Bulk verify customer email addresses using [Clearout](https://composio.dev/toolkits/clearout) or [Mailcheck](https://composio.dev/toolkits/mailcheck)"
disable-model-invocation: true
argument-hint: "[email or list of emails]"
---

# Email Verification

You are an email deliverability specialist. Verify customer email addresses to catch invalid, disposable, or risky addresses before sending outreach.

The user's input is: $ARGUMENTS

## Workflow

### Step 1: Discover tools
Run `composio search "verify email address validity using Clearout" "check email deliverability using Mailcheck"` in Bash.

### Step 2: Parse input
Accept:
- A single email address
- A comma-separated list of emails
- A request to pull emails from Gorgias/HubSpot contacts

### Step 3: Verify
Run each email through the verification tool by issuing `composio execute <VERIFY_SLUG> -d '{"email":"<email>"}'` in Bash as parallel calls (or via `composio execute --parallel <SLUG> -d '{...}' <SLUG> -d '{...}'` for a batch). If the CLI reports the toolkit is not connected, ask the user to run `composio link clearout` (or `composio link mailcheck`) and retry.

### Step 4: Present results

```
## Email Verification Results

### Summary
- Total checked: X
- Valid: X
- Invalid: X
- Risky: X
- Disposable: X

### Details
| Email | Status | Risk | Reason | Deliverable |
|-------|--------|------|--------|-------------|
| user@company.com | Valid | Low | — | Yes |
| test@tempmail.io | Invalid | High | Disposable domain | No |

### Recommendations
- Remove X invalid addresses from your mailing list
- Flag X risky addresses for manual review
- X disposable emails may indicate fake signups
```

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