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Plus-Address Detection for Vendor Screening
x402
Plus-Address Detection for Vendor Screening 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 email sub-addressing (plus-addressing) in an email local part and returns the base mailbox, using DNS data only, for use in vendor screening workflows.
Price / call$0.01
Success—
StatusUnknown
How this service works
Plus-address detection for Vendor screening: 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 the detected base mailbox extracted from the email's local part, along with an indicator of whether plus-addressing was found and the parsed components (tag, local part, domain). Uses DNS data only; does not send email or confirm inbox existence.
Example use cases
Vendor onboarding email normalization
“We just received a vendor application with the email procurement+q42024@supplierco.com — can you check if that's a plus-address and tell me the real base mailbox?”
Detecting aliased emails in supplier forms
“A new supplier submitted finance+invoices@bigfirm.net as their contact email. Can you detect whether that's a plus-address alias and extract the underlying address?”
Screening contractor submissions for email tricks
“Flag whether contractor+test@freelancer.io is using sub-addressing so I know if they might be routing replies away from their main inbox.”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/demand-domain-plus-address-check-vendor-screening?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to detect and normalize plus-addressed (sub-addressed) emails as part of vendor or supplier screening, without sending any email or verifying inbox existence. Prefer this over full email verification services when you only need structural and DNS-level detection of aliasing tricks, not deliverability checks.
Side effects
- Invalid or malformed email input returns an error
- Emails with no plus-address return the original address unchanged
- DNS lookup failures may affect domain-level checks
- Ambiguous local parts (e.g. quoted strings with special chars) may not parse correctly
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| string | Email address to inspect. |
Tags
x402
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