Dataweaz

dxc.com

Summary

Registrar
MarkMonitor Inc.
Status
clientDeleteProhibited
Created on
March 6, 2000
Expires on
March 6, 2027
Name servers
gbkema1dnsauth01d.emea.dxc.com, usgaal01dnsauth01d.amer.dxc.com, ns2.esdns.net, ns3.esdns.net, usoktu01dnsauth01d.amer.dxc.com, ns1.esdns.net, ns4.esdns.net, awsmumdnsauth01d.apj.dxc.com, syz01dnsauth01d.syz01.dxc.com
Mail servers
mx2.hc5997-4.iphmx.com, mx1.hc5997-4.iphmx.com

Spoofing protection (DMARC)

Quarantine

E-mails spoofing this domain are sent to spam.

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

Policy
Quarantine
Subdomain policy
Reject
Messages covered
100%
DKIM alignment
Relaxed
SPF alignment
Relaxed
Aggregate reports
[email protected]
Failure reports
[email protected]

Record

v=DMARC1; p=quarantine; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1

Authorized senders (SPF)

Delegated

The policy is defined by the domain dxc.com.on.autospf.email (redirect).

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

RuleValueResult
redirectdxc.com.on.autospf.email—

Top-level DNS lookups: 1 of 10 allowed

Record

v=spf1 redirect=dxc.com.on.autospf.email

E-mail signing (DKIM)

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

SelectorLikely serviceKeyStatus
s1SendGridRSA 2048 bitsActive
s2SendGridRSA 2048 bitsActive

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

MX

An MX (Mail Exchanger) record designates a server that receives e-mails sent to the domain. When someone writes to an @dxc.com address, their mail server queries the DNS for the domain's MX records, then delivers the message to the server they point to.

Example record

dxc.com  MX  10 mx1.dxc.com.
dxc.com  MX  20 mx2.dxc.com.

What the record contains

10, 20
Priority: the server with the lowest number is tried first. Servers with equal priority share the load.
mx1.dxc.com.
Host name of the mail server. It must point to an A or AAAA record: an IP address or an alias (CNAME) is not allowed here.
0 .
An MX "0 .", called a null MX, declares that the domain accepts no e-mail: sending servers give up at once instead of retrying.

Declaring at least two servers with different priorities avoids losing e-mails during an outage: sending servers retry for several days and fall back on the backup server. Without any MX, they try to deliver directly to the IP address of the domain.

SPF

SPF (Sender Policy Framework) is a TXT record listing the servers allowed to send e-mails on behalf of the domain. The receiving server checks that the sender is on this list. The final "all" rule says what to do with other servers: reject them (-all), flag their e-mails as suspicious (~all) or make no decision (?all).

Example record

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

What the record contains

v=spf1
Identifies the record as an SPF policy. It must come first.
ip4, ip6
Allows a specific IP address or an address range, for example ip4:192.0.2.0/24.
a, mx
Allows the addresses of the domain itself (A record) or those of its mail servers (MX).
include
Allows the servers of another domain, usually a sending service: include:_spf.google.com for Google Workspace.
-all, ~all
Final rule, applied to every other server. Its qualifier decides what happens to them: - rejects them, ~ flags their e-mails as suspicious, ? makes no decision, + accepts them (avoid it).

A domain must publish only one SPF record, and its evaluation cannot exceed 10 DNS lookups (include, a, mx, exists, redirect). Beyond that, mail servers treat it as invalid.

DKIM

DKIM (DomainKeys Identified Mail) signs every outgoing e-mail with a private key. The matching public key is published in a TXT record at selector._domainkey.dxc.com, so the recipient can check that the message really comes from the domain and was not altered on the way. The selector is chosen by each sending service and cannot be guessed: Dataweaz checks the most common ones (Google Workspace, Microsoft 365, Mailchimp, SendGrid…), so a key published under another selector may exist without appearing here.

Example record

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

What the record contains

v=DKIM1
Protocol version. Optional but recommended, in which case it must come first.
k
Key algorithm: rsa, the most common, or ed25519.
p
Public key, base64-encoded. An empty value means the key has been revoked.
t
Flags: y marks a key in testing, whose failures must not be penalized; s forbids its use for subdomains.

Each sending service publishes its key under its own selector (google, selector1, k1…), which allows several keys and seamless rotation. A 2048-bit RSA key is recommended today.

DMARC

DMARC (Domain-based Message Authentication, Reporting and Conformance) builds on SPF and DKIM. Published on _dmarc.dxc.com, it tells mail servers what to do with an e-mail that fails these checks (let it through, send it to spam or reject it) and where to send reports.

Example record

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

What the record contains

v=DMARC1
Identifies the record as a DMARC policy. It must come first.
p
Policy applied to e-mails that fail the checks: none (monitoring only), quarantine (spam folder) or reject.
sp
Subdomain policy. Without it, subdomains follow the domain's policy.
rua
Address that receives daily aggregate reports about e-mails sent on behalf of the domain, whether they pass the checks or not.
ruf
Address that receives detailed failure reports, message by message. Few providers still send them.
pct
Percentage of e-mails subject to the policy, for a gradual rollout. 100 by default.
adkim, aspf
DKIM and SPF alignment: r (relaxed, a subdomain of the same domain is enough) or s (strict, the domain must be identical).

To roll out DMARC without blocking legitimate e-mails, start with p=none and an rua address, analyze the reports to find every service sending on behalf of the domain, then move to quarantine and finally to reject.

DNS records of dxc.com

IP addresses (A and AAAA)

An A record maps the domain name to an IPv4 address: the address of the server that browsers contact to display the website. The AAAA record does the same for an IPv6 address. A domain can have several of them to spread visits across several servers.

Name servers (NS)

NS records designate the authoritative DNS servers of the domain: they answer every question about its other records (A, MX, TXT…). They are provided by the registrar, the hosting provider or a dedicated DNS service, and several servers are declared so that the domain keeps working if one of them fails.

ServerIP address
gbkema1dnsauth01d.emea.dxc.com192.46.116.54
usgaal01dnsauth01d.amer.dxc.com192.46.127.53
ns2.esdns.net204.74.110.144
ns3.esdns.net204.74.67.144
usoktu01dnsauth01d.amer.dxc.com192.46.126.53
ns1.esdns.net204.74.66.144
ns4.esdns.net204.74.111.144
awsmumdnsauth01d.apj.dxc.com10.145.61.61
syz01dnsauth01d.syz01.dxc.com192.46.122.54

Mail servers (MX)

MX records point to the servers that receive e-mails sent to the domain, that is to @dxc.com addresses. Each server has a priority: the one with the lowest number is tried first, the others take over if it fails. Without an MX record, the domain cannot receive e-mails.

PriorityServerIP address
10mx2.hc5997-4.iphmx.com139.138.34.167
10mx1.hc5997-4.iphmx.com139.138.34.167

TXT records

TXT records hold free text. They are used to prove ownership of the domain to online services (Google, Microsoft, Facebook…) and to publish e-mail security rules: SPF on the domain itself, DMARC on _dmarc.dxc.com.

NameContent
dxc.comatlassian-domain-verification=piUwsMNHcYsQZvlU40kW5Lav94S8nCRQmWez2PbpCbybGaKmxlst8akyUVpIX4jr
dxc.comms-domain-verification=d2ac4665-67f9-427b-806c-8a4515353e16
dxc.comasv=0340b08018ca13b7bc615e59222269c9
dxc.comMS=00B5CDC83231B3212DDAE98FDBA48262C3DD3216
dxc.comgoogle-site-verification=19s2seiWoiCsDQi2n4TnuMjGJqpU2kWzXHAF_oFWeqY
dxc.comcisco-ci-domain-verification=701218acb414c359d811fd10298dbefaed5d31042a5a2bafb90e13e5bf345c25
dxc.comgoogle-site-verification=_tJxCViaCvc-ZsV3-bAa7p28IWWqI38B1XO71Vd9Ymw
dxc.com_sjout4uldwuj1dli77cfv2p5zyg9ayq
dxc.comcursor-domain-verification-wf0peh=vzgDhIWSSOgivBvR4skgS8nPx
dxc.comgoogle-gws-recovery-domain-verification=51673348
dxc.comadobe-idp-site-verification=b71a9e3699caefdfdbd358bf84400d54093e55bc297216746b6729647e5caaa7
dxc.comairtable-verification=0a91657eb81560dfd29bda99888cfd5c
dxc.com_w6sh3cpwpy1jm65p3t0bsnx2pau5vyl
dxc.comamazonses:JttMz9o6Co9jJ9aa8YgjK0elZjzrjhFmTmdAdA4Bclk=
dxc.com_wjcemiwq4ye5f8v3c8vn9hshc512zxu
dxc.comf5e32ebea26124678fd734c90d616bb919dc6405204ec99698697ad25c4920e7
dxc.com893sri0cadmmgka23dsdu1kfdg
dxc.comanthropic-domain-verification-3hdzr6=0E4IFPL5VlZzbAQUgC1jKZpUm
dxc.com_globalsign-domain-verification=SJIHJup0gQ6p7h98x0T94akmlL3JPeAkNyqTdifCTe
dxc.com_ut1re5q4nl1br6kprhtki3o9x1peaaz
dxc.comatlassian-sending-domain-verification=772a68cd-6854-4caf-a0b9-4207b405c573
dxc.comr6e2hrgf1fjuki44hh6n5e6nre
dxc.commsfpkey=73e1pt8ikk3jewahlaf7uwm3i
dxc.comfacebook-domain-verification=76atf9jnxjtkq05emv8r35vtpazqy8
dxc.com_7uasfbxe3bxcbm4645ez13oobl032pe
dxc.comatlassian-domain-verification=hy98FQoX/71DJZ9fF92XWhAibjwLkCpav9eRmreymlN+/ahmzPIRZA0Bcdj3jMdy
dxc.comdell-technologies-domain-verification=dxc.com_abc11c10-a2b4-4c29-a927-57de21c29808_1699427202
dxc.comamazonses:EYD9ujXV4OfMGVUVslxMDT44L4ffnN5gLWNbnJPjNLk=
dxc.com_bk1mes98k1p5yy8qrc1qbijko32fcth
dxc.comahrefs-site-verification_fce076864dbadb9b22d85b5f319d3bf53b58165ad76218e18dc8cc77bf96e396
dxc.comadobe-idp-site-verification=4b7d8bd648e04362864a55d09e88d1e35260b8d749bb924e8d6d6792b570ff33
dxc.comapple-domain-verification=UceLuLtN88S8TQmp
dxc.comdadfeca0c04becf206925c0b644804da08e88dcf961a243914739005e6896516
dxc.com_urao9fhbhe3365pu21g4mgrj93ds3yb
dxc.comcisco-ci-domain-verification=1f4ec131e2795ef817d1a9c6df2949efee5c0c5bf71c55b8eaba3d6a58647d2c
dxc.com_s5eefks06o4jjvw5y6ohpe6umikk2x8
dxc.com0102f3dfff137c1b12900ff88cfb3960d7841d038e119cfc2a80e8bb25a5317f
dxc.comgoogle-site-verification=TJdhpGSMNWGEMdobnkDGXVX9epu-wHvdrl5BknEB78Q
dxc.comDynatrace-site-verification=fa11457a-1d3c-48cd-9819-301f35a41f96__hcqgdqsmth1hm0pavrkks8noma
dxc.comC0O0M19623
dxc.comdocusign=36e9810b-6714-4528-ba57-0e30ce226fde
dxc.comatlassian-domain-verification=QdDibdT7IfevLans/Eb33umyczJvPZrIEWI1JKeDKbYXDCZsibh6h6ADCHIaTOsa
dxc.comflexera-domain-verification-fphfwwnfnfieenqe
dxc.combox-domain-verification=c8eb7d6e78247c53c7801eecdd9db518f3fa52d2ac9bee3081c2ac4251e40538
dxc.com_ib5q7oa4ipt8bfnex9v1envwncsw8a6
dxc.comatlassian-domain-verification=uBaQ/C0/QZJXJEQqkzRmFrPfb8s7iLbbGZ75ioz0EhZdRbzjgJMj7mKakeWkMl10
dxc.comflexera-domain-verification-tktwoydpcbkgdfpg
dxc.comamazonses:o6jtl7HdBiAEGtcX/8azOAqvUnT5HcnHntcCx4T4ZtQ=
dxc.com_vr3va8rifn80vg2btsodlrs7k8z6l9d
dxc.comatlassian-domain-verification=fNRFSnWKOzZ4KHZ5aDG7aYz3ESyEypaYt3S4cGgLRusCa4pwhnmE2t0xKySjLbsF
dxc.com2o3g7uaugkjfr23n4beq8lsj5i
dxc.comatlassian-domain-verification=HbayxDPyHPpUoAE9CZ2gEaBWytXbSf15JPko28jULWFnjrCOv1PmzOXnNXIxpoCE
dxc.comv=spf1 redirect=dxc.com.on.autospf.email
dxc.comms-domain-verification=9b2e9508-b55a-4270-b45d-3b0967a1220d
dxc.comgoogle-site-verification=focanWTGxr06IZqzKbx6WkoBmydZc5-UpDBxaHD9tx0
dxc.comms-domain-verification=d6d2f10b-e8ee-4280-83e6-97869dcb1cc4
dxc.comadobe-sign-verification=fc045ed3b5fc3e9bf8b0ab73891f437c
_dmarc.dxc.comv=DMARC1; p=quarantine; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
s1._domainkey.dxc.comk=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvvRfawvRRx7OtnwA9r6QJlD7zxjLOK0bHDNhUuOGOZAfllbbbilxyJY+njkFXjd5fFcjgRMN3owzP4zxbP01mjLI81oK7CEsmfdNKkum2oFMldMahkS/nLhAy/4QbHxqyBHZrcVISEiJKJLzb7QkqydSHHgS250ALlzTYOyce1Xw3u336bwkquKt4zMUGkjVRu/oiLfER7e1ZdfXiG4Qmko91iQr5OKTXXIyVjEkYJLLKjLCELXaFf9taJh7093lyg73JSDVUjUtsPwGpVuk03PQ2GPP7AwK3ODeIIFU+8J7kaWxoxvpEtl+ozwZuJ0pcCh16+k3pHvsD6D117C73QIDAQAB
s2._domainkey.dxc.comk=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7OvL4mCE1/x9zR6dDeIUq+BFsa1AxJFw0xA+e+Xvv0Ly1wLHPzP6ry07MQHfvh71/X/PQ9wzqTcbPn2qvmP/CLvHe3zHsCF5WSSNa+/RKAVVbGRa4XHL0fZgDGSfcijSBEfWyqlyaererAhQMEoO7q8rCS4rS767mkDJ6meHJuURBepXF6mgtBAEIQx2n9k1MEAbXOy9Ucx1LQXs5GQW/Hk13vda/XriOBdHLfk8GG4VPs3XxMQ+NO+7JzV3lKFyaQ6U7/4DWDZ/HE9mWhI3J/Mg066wWGmZG3Tw6+mc8YVOFEm+JmILOAvrtTGiAGShhu+7VamaPyRw71LxBX6EswIDAQAB

Related IP addresses

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

IP addressUsed for/24 block
151.101.195.10Website151.101.195.0/24
151.101.131.10Website151.101.131.0/24
151.101.67.10Website151.101.67.0/24
151.101.3.10Website151.101.3.0/24
192.46.116.54Name server gbkema1dnsauth01d.emea.dxc.com192.46.116.0/24
192.46.127.53Name server usgaal01dnsauth01d.amer.dxc.com192.46.127.0/24
204.74.110.144Name server ns2.esdns.net204.74.110.0/24
204.74.67.144Name server ns3.esdns.net204.74.67.0/24
192.46.126.53Name server usoktu01dnsauth01d.amer.dxc.com192.46.126.0/24
204.74.66.144Name server ns1.esdns.net204.74.66.0/24
204.74.111.144Name server ns4.esdns.net204.74.111.0/24
10.145.61.61Name server awsmumdnsauth01d.apj.dxc.com10.145.61.0/24
192.46.122.54Name server syz01dnsauth01d.syz01.dxc.com192.46.122.0/24
139.138.34.167Mail server mx2.hc5997-4.iphmx.com, Mail server mx1.hc5997-4.iphmx.com139.138.34.0/24

WHOIS of the domain dxc.com

Domain Name: DXC.COM
   Registry Domain ID: 21546944_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.markmonitor.com
   Registrar URL: http://www.markmonitor.com
   Updated Date: 2026-02-02T12:24:18Z
   Creation Date: 2000-03-06T12:03:25Z
   Registry Expiry Date: 2027-03-06T12:03:25Z
   Registrar: MarkMonitor Inc.
   Registrar IANA ID: 292
   Registrar Abuse Contact Email: [email protected]
   Registrar Abuse Contact Phone: +1.2086851750
   Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
   Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
   Name Server: AWSMUMDNSAUTH01D.APJ.DXC.COM
   Name Server: GBKEMA1DNSAUTH01D.EMEA.DXC.COM
   Name Server: NS1.ESDNS.NET
   Name Server: NS2.ESDNS.NET
   Name Server: NS3.ESDNS.NET
   Name Server: NS4.ESDNS.NET
   Name Server: SYZ01DNSAUTH01D.SYZ01.DXC.COM
   Name Server: USGAAL01DNSAUTH01D.AMER.DXC.COM
   Name Server: USOKTU01DNSAUTH01D.AMER.DXC.COM
   DNSSEC: unsigned
   URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2026-10-01T10:46:58Z <<<

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
registrar's sponsorship of the domain name registration in the registry is
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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