# Plus-Address Detection for Email Security Review

> Plus-Address Detection for Email Security Review is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Detects sub-addressing (plus-addressing) in an email local part and returns the base mailbox using DNS data only.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/demand-domain-plus-address-check-security-review?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/plus-address-detection-for-email-security-review-f4cef3ba
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-g08Q9VtZDE9vS5iXgC4n

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability plus-address-detection-for-email-security-review-f4cef3ba -d '<json body>'
```

Example prompt: Can you check if the email address user+promo@example.com is using plus-addressing and tell me what the real base mailbox is?

## When to prefer this

Choose this endpoint when you need a lightweight, read-only check to detect email sub-addressing (plus aliases) for security, fraud prevention, or deduplication purposes, without needing to send a verification email or confirm inbox existence. Ideal for pre-registration validation pipelines or security reviews of submitted email data.

## Known failure modes

- Invalid email format returns an error or empty result
- Email without a plus sign returns no sub-address detected
- DNS lookup failures may affect domain resolution accuracy
- Malformed input may cause parsing errors

## How this service works

Plus-address detection for Security review: Detect sub-addressing in an email local part and return the base mailbox. DNS data only; does not send email or verify that an inbox exists.

## Output

Returns whether the submitted email address contains a plus-address sub-tag in its local part, and provides the base mailbox (the portion before the '+') using DNS data. Does not verify inbox existence or send any email.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "email": {
   "type": "string",
   "default": "user@example.com",
   "description": "Email address to inspect."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/plus-address-detection-for-email-security-review-f4cef3ba/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)