email-verifier

name	email-verifier
description	Verifies whether an email address is deliverable by checking DNS and SMTP records. Use when the user wants to check if an email is valid, verify an email address, or assess deliverability before sending.
user-invocable	true
argument-hint	[e-mail]

Email Verifier

Check whether an email address is deliverable before you send to it.

Examples

• /hunter:email-verifier [e-mail]
• "Is [e-mail] a valid email?"
• "Check if [e-mail] is deliverable"
• "Verify these emails: [e-mail], [e-mail], [e-mail]"
• "Can I send to [e-mail]?"

Steps

1. Parse the input. Extract the email address(es).

2. Call Email-Verifier for each email.

3. Present the result with an actionable recommendation:

# Verification: [e-mail]

| Check | Result |
|-------|--------|
| **Status** | valid |
| **Score** | 91 |
| **MX Records** | Valid |
| **SMTP Check** | Valid |
| **Accept All** | No |
| **Disposable** | No |

## Recommendation
Safe to send. This email address is deliverable with high confidence.

## Next Actions
1. Find more contacts at stripe.com
2. Enrich this contact with personal details

4. Interpret the result clearly based on the status field:

   • valid (score 80+) -> "Safe to send. This email address is deliverable with high confidence."
   • accept_all -> "Proceed with caution. This mail server accepts all addresses, so delivery is not guaranteed even though SMTP checks pass."
   • unknown -> "Unable to determine deliverability. The mail server didn't respond clearly -- consider sending a low-priority test first."
   • invalid (score below 50) -> "Do not send. This address is likely invalid and will bounce."
   • Disposable email (disposable: true) -> Add: "This is a disposable/temporary email address. It may stop working at any time."
   • Pending (HTTP 202 response) -> "Verification is still in progress. Try again in a few seconds."

5. For multiple emails, verify each separately and present a summary:

# Verification Summary

| Email | Status | Score | Recommendation |
|-------|--------|-------|----------------|
| [e-mail] | valid | 91 | Safe to send |
| [e-mail] | accept_all | 62 | Proceed with caution |
| [e-mail] | invalid | 12 | Do not send |

**Results:** 1 valid, 1 accept_all, 1 invalid

Credit Cost

Costs 1 verification credit per email — only charged for valid, invalid, or accept_all results.

Success Criteria

Verification status returned with a clear, actionable recommendation the user can act on immediately.