2 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Is this address on duck.com (a disposable/temporary email service)? Exact and subdomain match on the domain part, plus whether duck.com currently resolves (MX/A), so signups from burner inboxes can be flagged or blocked....
Bulk is email on duck com: up to 20 emails in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for ag...