Hostname
mx.crn.pl
Last fetched
mx.crn.pl resolves to 1 IPv4 address operated by AS203417 in PL.
Nutrition Label
Resolution chain
mx.crn.pl 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 |
|---|---|---|---|---|
| 5.252.231.196 | 5.252.228.0/22 | AS203417 | — | PL |
WHOIS identity
No WHOIS records are currently associated with mx.crn.pl in WhisperGraph.
Threat posture
History
Mail and authentication
MX records
SPF policy
5 SPF mechanisms authorising senders for mx.crn.pl.
| Mechanism | Target |
|---|---|
| SPF_A | mx.crn.pl |
| SPF_A | serwer2098630.home.pl |
| SPF_INCLUDE | _spf.jupiter.salesmanago.pl |
| SPF_IP | 5.252.231.184/32 |
| SPF_MX | mx.crn.pl |
Related pages
Pivot deeper into the graph from mx.crn.pl.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "mx.crn.pl"})-[: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 20Or query Whisper from your own LLM workflow via the Whisper MCP server.