Hostname

mail2.isol.cz

Last fetched Fri, 03 Jul 2026 18:53:58 GMT

mail2.isol.cz resolves to 1 IPv4 address operated by AS35592 in CZ.

Nutrition Label

Resolution chain

mail2.isol.cz resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
89.187.131.41	89.187.130.0/23	AS35592	—	CZ

WHOIS identity

No WHOIS records are currently associated with mail2.isol.cz in WhisperGraph.

Subdomains

2 observed subdomains of mail2.isol.cz.

Subdomain
_dmarc.mail2.isol.cz
_mta-sts.mail2.isol.cz

Threat posture

History

Mail and authentication

MX records

mail.isol.cz

SPF policy

6 SPF mechanisms authorising senders for mail2.isol.cz.

Mechanism	Target
SPF_IP	89.187.131.39
SPF_IP	89.187.131.41
SPF_IP	89.187.131.47
SPF_IP	89.187.131.48
SPF_IP	89.187.131.49
SPF_MX	mail2.isol.cz

Pivot deeper into the graph from mail2.isol.cz.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "mail2.isol.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.