knowbe4.com

Summary

Registrar

Amazon Registrar, Inc.

Status

clientTransferProhibited

Created on

August 23, 2010

Expires on

August 23, 2027

Name servers

ns-1036.awsdns-01.org, ns-1882.awsdns-43.co.uk, ns-38.awsdns-04.com, ns-853.awsdns-42.net

Mail servers

aspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com, aspmx4.googlemail.com, aspmx2.googlemail.com, aspmx5.googlemail.com, aspmx3.googlemail.com

DMARC

Quarantine

SPF

Strict

DKIM

6 keys found

Website

See the website

Spoofing protection (DMARC)

DMARC tells mail servers what to do with an e-mail that claims to come from knowbe4.com but fails SPF and DKIM checks.

Policy

Quarantine

Subdomain policy

Quarantine

Messages covered

100%

DKIM alignment

Relaxed

SPF alignment

Relaxed

Aggregate reports

[email protected], [email protected], [email protected]

Failure reports

[email protected], [email protected], [email protected]

Record

v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected],mailto:[email protected]; ri=3600; fo=1

Authorized senders (SPF)

SPF lists the servers allowed to send e-mails for knowbe4.com.

v=spf1 include:mailsenders.netsuite.com include:_spf.google.com include:mail.zendesk.com include:stspg-customer.com ip4:23.21.109.212 ip4:23.21.109.197 ip4:52.49.201.246 ip4:52.49.235.189 ip4:54.172.84.90 ip4:147.160.167.0/24 ip4:168.235.226.71 ip4:168.235.226.72 ip4:168.235.226.73 ip4:168.235.226.74 ip4:168.235.233.211 ip4:168.235.233.212 ip4:168.235.233.213  ip4:192.254.121.248 ip4:167.89.63.53 ip4:167.89.111.118 exists:%{i}._spf.mta.salesforce.com -all

E-mail signing (DKIM)

DKIM keys published by knowbe4.com under the most common selectors. Other keys may exist under selectors specific to each sending service.

RSA keys shorter than 2048 bits, called short keys, are discouraged: they are easier to break.

MX, SPF, DKIM and DMARC: the e-mail records

Four DNS records make a domain's e-mail work. MX says where e-mails sent to knowbe4.com arrive; SPF, DKIM and DMARC let mail servers check that an e-mail claiming to come from knowbe4.com was really sent by this domain, which protects it against spoofing.

knowbe4.com  MX  10 mx1.knowbe4.com.
knowbe4.com  MX  20 mx2.knowbe4.com.

knowbe4.com  TXT  "v=spf1 mx include:_spf.google.com ip4:192.0.2.10 -all"

google._domainkey.knowbe4.com  TXT  "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA…"

_dmarc.knowbe4.com  TXT  "v=DMARC1; p=quarantine; rua=mailto:[email protected]; adkim=r; aspf=r"

DNS records of knowbe4.com

Related IP addresses

IPv4 addresses used by knowbe4.com: website, name servers, mail servers and senders authorized by SPF.

WHOIS of the domain knowbe4.com

Domain Name: KNOWBE4.COM
   Registry Domain ID: 1612400067_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.registrar.amazon
   Registrar URL: http://registrar.amazon.com
   Updated Date: 2026-07-19T16:25:55Z
   Creation Date: 2010-08-23T16:24:14Z
   Registry Expiry Date: 2027-08-23T16:24:14Z
   Registrar: Amazon Registrar, Inc.
   Registrar IANA ID: 468
   Registrar Abuse Contact Email: [email protected]
   Registrar Abuse Contact Phone: +1.2024422253
   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
   Name Server: NS-1036.AWSDNS-01.ORG
   Name Server: NS-1882.AWSDNS-43.CO.UK
   Name Server: NS-38.AWSDNS-04.COM
   Name Server: NS-853.AWSDNS-42.NET
   DNSSEC: signedDelegation
   DNSSEC DS Data: 29403 13 2 CB90BD73DC1B7A6062CB618C1963280FEF2A5D69EFDD1A8F8588608A939D9E95
   DNSSEC DS Data: 29402 13 2 95D2244BA947558E4350B951D4603C07F9CAB115956CE42B417DC636B4920DD1
   URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2026-10-02T04:32:13Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

NOTICE: The expiration date displayed in this record is the date the
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