Hostname

firstmailler.net

Last fetched Fri, 18 Sep 2026 04:50:09 GMT

firstmailler.net resolves to 5.230.123.239, announced in 5.230.123.0/24 by ASGHOSTNET - GHOSTnet GmbH in DE. firstmailler.net is listed by 1 threat feed; reconciled level HIGH.

Threat posture

40threat score (procedure-native scale)

HIGH

Listed by 1 threat feed. At least one source recommends blocking.

Threat feeds listing this: 1
Verdict coverage: malicious-evidenced
First seen on a feed: Wed, 26 Aug 2026 14:49:47 GMT
Last seen on a feed: Fri, 18 Sep 2026 00:11:39 GMT

Nutrition Label

Resolution chain

5.230.123.239
5.230.123.0/24 · ASGHOSTNET - GHOSTnet GmbH · Frankfurt am Main, DE

IPv6 resolution

No AAAA record for firstmailler.net is recorded in WhisperGraph.

Attribution

ghostnet

ORIGIN_AS

WHOIS identity

Registrar: iana:3765
Registrant organisation: firstmail

Subdomains

Subdomain
mx.firstmailler.net
ns1.firstmailler.net

Showing 2 of 2 subdomains (2 per page).

Mail and authentication

Nameservers

ns1.firstmail.ltd
ns2.firstmail.ltd
ns1.firstmailler.net
a.root-servers.net
b.root-servers.net
c.root-servers.net
d.root-servers.net
e.root-servers.net
f.root-servers.net
g.root-servers.net
h.root-servers.net
i.root-servers.net
j.root-servers.net
k.root-servers.net
l.root-servers.net
m.root-servers.net

MX records

mx.firstmailler.net

SPF policy

a: firstmailler.net
mx: firstmailler.net
ip: 5.230.123.239
ip: 5.252.35.162

Threat-feed evidence

History

Pivot from firstmailler.net into the addresses, networks and registries it depends on.

Cypher and MCP

Reproduce this hostname's resolution chain against graph.whisper.security:

MATCH (h:HOSTNAME {name: "firstmailler.net"})-[:RESOLVES_TO]->(ip:IPV4)
      -[:ANNOUNCED_BY]->(ap:ANNOUNCED_PREFIX)-[:ROUTES]->(a:ASN)
OPTIONAL MATCH (a)-[:HAS_NAME]->(n:ASN_NAME)
RETURN ip.name AS ip, ap.name AS prefix, a.name AS asn, n.name AS network
LIMIT 20

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