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Hostname

mx4.werk21system.de

Last fetched

mx4.werk21system.de resolves to 1 IPv4 address operated by AS24940 in DE.

Nutrition Label

WHISPER CANON · mx4.werk21system.deRouting diversity1.5/10Peering density7.5/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency0.0/10Resolver footprint0.0/10canon.whisper.security/host/mx4.werk21system.de

Resolution chain

mx4.werk21system.de resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
78.46.128.8678.46.0.0/15AS24940—DE

WHOIS identity

No WHOIS records are currently associated with mx4.werk21system.de in WhisperGraph.

Threat posture

History

Mail and authentication

SPF policy

5 SPF mechanisms authorising senders for mx4.werk21system.de.

MechanismTarget
SPF_Amx4.werk21system.de
SPF_IP149.233.9.50
SPF_IP49.13.240.50
SPF_IP78.46.128.86
SPF_IP91.216.245.166

Related pages

Pivot deeper into the graph from mx4.werk21system.de.

Cypher and MCP

Reproduce the resolution chain directly against graph.whisper.security:

MATCH (h:HOSTNAME {name: "mx4.werk21system.de"})-[:RESOLVES_TO]->(ip:IPV4)
      -[:ANNOUNCED_BY]->(ap:ANNOUNCED_PREFIX)
      -[:ROUTES]->(asn:ASN)-[:HAS_NAME]->(n:ASN_NAME)
RETURN ip.name AS ip, ap.name AS prefix, asn.name AS asn, n.name AS operator
LIMIT 20

Or query Whisper from your own LLM workflow via the Whisper MCP server.