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mailcheck.netzhandwerker.de email
https://mailcheck.netzhandwerker.de/email
payable
DNS and list based verification. Never claims that a mailbox exists without evidence: without an SMTP probe the verdict for a routable address is "unknown", not "valid".
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.001
- Network
- base
- Pay to
- 0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 529 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-10T09:14:54.410Z (2d ago)
- Category
- identity
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fmailcheck.netzhandwerker.de%2Femail"