hmhco.com

Summary

Registrar

Network Solutions, LLC

Status

clientTransferProhibited

Created on

February 18, 2007

Expires on

February 18, 2027

Name servers

ns-341.awsdns-42.com, ns-951.awsdns-54.net, ns-1193.awsdns-21.org, ns-1900.awsdns-45.co.uk

Mail servers

us-smtp-inbound-2.mimecast.com, us-smtp-inbound-1.mimecast.com

DMARC

Quarantine

SPF

Soft

DKIM

3 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 hmhco.com but fails SPF and DKIM checks.

Policy

Quarantine

Subdomain policy

Quarantine

Messages covered

100%

DKIM alignment

Relaxed

SPF alignment

Relaxed

Aggregate reports

—

Failure reports

—

Record

v=DMARC1; p=quarantine; pct=100

Authorized senders (SPF)

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

v=spf1 ip4:209.235.126.1 ip4:209.235.126.2 ip4:209.235.126.7 ip4:209.235.126.8 ip4:209.235.126.9 ip4:209.235.126.10 include:_netblocks.hmhco.com include:_spf.salesforce.com include:us._netblocks.mimecast.com ~all

E-mail signing (DKIM)

DKIM keys published by hmhco.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 hmhco.com arrive; SPF, DKIM and DMARC let mail servers check that an e-mail claiming to come from hmhco.com was really sent by this domain, which protects it against spoofing.

hmhco.com  MX  10 mx1.hmhco.com.
hmhco.com  MX  20 mx2.hmhco.com.

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

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

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

DNS records of hmhco.com

Related IP addresses

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

WHOIS of the domain hmhco.com

Domain Name: HMHCO.COM
   Registry Domain ID: 823415015_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.networksolutions.com
   Registrar URL: http://networksolutions.com
   Updated Date: 2026-02-03T09:30:06Z
   Creation Date: 2007-02-18T14:24:38Z
   Registry Expiry Date: 2027-02-18T14:24:38Z
   Registrar: Network Solutions, LLC
   Registrar IANA ID: 2
   Registrar Abuse Contact Email: [email protected]
   Registrar Abuse Contact Phone: +1.8777228662
   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
   Name Server: NS-1193.AWSDNS-21.ORG
   Name Server: NS-1900.AWSDNS-45.CO.UK
   Name Server: NS-341.AWSDNS-42.COM
   Name Server: NS-951.AWSDNS-54.NET
   DNSSEC: unsigned
   URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2026-10-02T08:46:13Z <<<

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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currently set to expire. This date does not necessarily reflect the expiration
date of the domain name registrant's agreement with the sponsoring
registrar.  Users may consult the sponsoring registrar's Whois database to
view the registrar's reported date of expiration for this registration.

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