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Hostname

sdmail.sdserver.cz

Last fetched

sdmail.sdserver.cz resolves to 1 IPv4 address operated by AS25248 in CZ.

Nutrition Label

WHISPER CANON · sdmail.sdserver.czRouting diversity1.5/10Peering density6.2/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency0.0/10Resolver footprint0.0/10canon.whisper.security/host/sdmail.sdserver.cz

Resolution chain

sdmail.sdserver.cz resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
212.158.143.16212.158.128.0/19AS25248—CZ

WHOIS identity

No WHOIS records are currently associated with sdmail.sdserver.cz in WhisperGraph.

Threat posture

History

Mail and authentication

SPF policy

8 SPF mechanisms authorising senders for sdmail.sdserver.cz.

MechanismTarget
SPF_Asdmail.sdserver.cz
SPF_Asdmail2.sdserver.cz
SPF_Asdmail3.sdserver.cz
SPF_INCLUDEspf.protection.outlook.com
SPF_IP212.158.143.0/25
SPF_IP84.244.96.128/26
SPF_IP89.221.223.89/32
SPF_MXsdmail.sdserver.cz

Related pages

Pivot deeper into the graph from sdmail.sdserver.cz.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "sdmail.sdserver.cz"})-[: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.