Verify web.de addresses

How Kavik verifies WEB.DE addresses: same United Internet platform as GMX, same user-unknown reply classes mapped to invalid.

WEB.DE is the second big United Internet freemail platform in Germany, alongside GMX. It shares the same mail infrastructure and the same terse numeric reply classes.

How Kavik verifies WEB.DE

  • User-unknown replies (UI r1601 class) map to invalid for the specific mailbox, never to a generic block verdict.
  • Connection-level refusals become unknown, keeping temporary egress problems from being written into your list as bounces.
  • The platform’s catch-all domains are measured, not assumed.

What the verdicts mean here

  • Valid: accepted under the platform’s real reply classes.
  • Risky: catch-all or ambiguous.
  • Invalid: user-unknown for this mailbox.
  • Unknown: connection-level refusal this time; never billed.
curl "https://api.kavik.email/api/v1/verify?email=jane@web.de" \
  -H "X-API-Key: eva_your_key"

See single verification for the full response shape.