Hostname
pstemail.knowbe4.com
Last fetched
pstemail.knowbe4.com resolves to 6 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in US.
Nutrition Label
Resolution chain
pstemail.knowbe4.com resolves to 6 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 18.224.219.179 | 18.224.0.0/14 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 3.20.194.73 | 3.20.0.0/14 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 3.20.87.51 | 3.20.0.0/14 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 3.220.122.174 | 3.208.0.0/12 | AS14618 | AMAZON-AES - Amazon.com, Inc. | US |
| 3.231.179.208 | 3.224.0.0/12 | AS14618 | AMAZON-AES - Amazon.com, Inc. | US |
| 54.158.174.185 | 54.156.0.0/14 | AS14618 | AMAZON-AES - Amazon.com, Inc. | US |
WHOIS identity
No WHOIS records are currently associated with pstemail.knowbe4.com in WhisperGraph.
Subdomains
3 observed subdomains of pstemail.knowbe4.com.
Threat posture
History
Mail and authentication
MX records
SPF policy
12 SPF mechanisms authorising senders for pstemail.knowbe4.com.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | ab.sendgrid.net |
| SPF_IP | 134.128.64.0/19 |
| SPF_IP | 134.128.96.0/19 |
| SPF_IP | 149.72.0.0/16 |
| SPF_IP | 159.183.0.0/16 |
| SPF_IP | 167.89.0.0/17 |
| SPF_IP | 168.245.0.0/17 |
| SPF_IP | 192.254.112.0/20 |
| SPF_IP | 198.21.0.0/21 |
| SPF_IP | 198.37.144.0/20 |
| SPF_IP | 208.117.48.0/20 |
| SPF_IP | 50.31.32.0/19 |
Related pages
Pivot deeper into the graph from pstemail.knowbe4.com.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "pstemail.knowbe4.com"})-[: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.