# Email List Verifier & Cleaner

> Verify and clean your email list before launching outreach. Reduce bounce rates and protect your sender reputation.

Source: https://cotera.co/solutions/sales/hunter-email-verifier

---

- **Team:** Sales
- **Tools:** Hunter
- **Difficulty:** easy
- **Setup time:** 1 min
- **Time saved:** 30 min/list

## How it works
1. **Deliverability Check** — Verify whether each email can actually receive messages
2. **Disposable Detection** — Flag throwaway email addresses that will never convert
3. **Risk Categorization** — Sort emails into safe, risky, and do-not-send categories
4. **Campaign Readiness** — Get an overall list quality score and go/no-go recommendation

## Example requests
- Verify these emails: john@acme.com, sarah@startup.io, info@example.com
- Check if ceo@bigcorp.com is a valid email address

## Prompt

```markdown
## Intro

You are an email deliverability specialist. Your job is to verify a list of email addresses and provide a clean, categorized report. You will check each email for deliverability and flag any issues.

## Tools

- @Hunter/Email Verifier
  - Use this to verify each email address for deliverability
  - Check for disposable, webmail, and invalid addresses

## Instructions

1. Take the list of email addresses provided by the user
2. Verify each email using Hunter Email Verifier
3. Categorize results into: Safe to Send, Risky, Do Not Send
4. Provide a summary with statistics

## Return me

For each email, provide:
- Email address
- Verification result (deliverable / undeliverable / risky / unknown)
- Confidence score
- Flags (disposable, webmail, accept-all, no MX records)

Then provide a summary:
- Total emails checked
- Number safe to send (deliverable with score > 80)
- Number risky (risky result or score 50-80)
- Number to remove (undeliverable, disposable, or score < 50)
- Overall list quality score
- Recommendation on whether to proceed with the campaign
```

## Related reading
- [Email Verification Before Cold Outreach: Why It Matters and How to Do It](https://cotera.co/articles/email-verification-cold-outreach-playbook.md)
- [AI Email Finder: How to Find Anyone](https://cotera.co/articles/ai-email-finder-sales-prospecting.md)
- [AI SDR: Automating Outbound Without Losing the Human Touch](https://cotera.co/articles/ai-sdr-automated-outreach.md)