att.com

Résumé

Registrar

CSC Corporate Domains, Inc.

Statut

clientTransferProhibited

Créé le

25 avril 1986

Expire le

26 avril 2027

Serveurs DNS

a2-64.akam.net, a1-187.akam.net, a11-65.akam.net, a5-66.akam.net, a22-67.akam.net, a4-64.akam.net

Serveurs de messagerie

mx0a-00191d01.pphosted.com, mx0b-00191d01.pphosted.com, mxa-00191d01.gslb.pphosted.com, mxb-00191d01.gslb.pphosted.com

DMARC

Rejet

SPF

Souple

DKIM

2 clés trouvées

Site internet

Voir le site internet

Protection contre l'usurpation (DMARC)

DMARC indique aux serveurs de messagerie que faire d'un e-mail qui prétend venir de att.com mais échoue aux contrôles SPF et DKIM.

Politique

Rejet

Politique des sous-domaines

Rejet

Messages concernés

100 %

Alignement DKIM

Souple

Alignement SPF

Souple

Rapports agrégés

dmarc_rua@emaildefense.proofpoint.com

Rapports d'échec

dmarc_ruf@emaildefense.proofpoint.com

Enregistrement

v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

Expéditeurs autorisés (SPF)

SPF liste les serveurs autorisés à envoyer des e-mails pour att.com.

v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all

Signature des e-mails (DKIM)

Clés DKIM publiées par att.com sous les sélecteurs les plus courants. D'autres clés peuvent exister sous des sélecteurs propres à chaque service d'envoi.

Les clés RSA de moins de 2048 bits, dites courtes, sont déconseillées : elles sont plus faciles à casser.

MX, SPF, DKIM et DMARC : les enregistrements de la messagerie

Quatre enregistrements DNS font fonctionner la messagerie d'un domaine. MX indique où arrivent les e-mails adressés à att.com ; SPF, DKIM et DMARC permettent aux serveurs de vérifier qu'un e-mail qui prétend venir de att.com a bien été envoyé par ce domaine, et le protègent ainsi contre l'usurpation.

att.com  MX  10 mx1.att.com.
att.com  MX  20 mx2.att.com.

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

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

_dmarc.att.com  TXT  "v=DMARC1; p=quarantine; rua=mailto:dmarc@att.com; adkim=r; aspf=r"

Enregistrements DNS de att.com

Adresses IP liées

Adresses IPv4 utilisées par att.com : site web, serveurs DNS, serveurs de messagerie et expéditeurs autorisés par SPF.

WHOIS du domaine att.com

Domain Name: ATT.COM
   Registry Domain ID: 2906496_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.corporatedomains.com
   Registrar URL: http://cscdbs.com
   Updated Date: 2026-04-22T05:14:28Z
   Creation Date: 1986-04-25T05:00:00Z
   Registry Expiry Date: 2027-04-26T04:00:00Z
   Registrar: CSC Corporate Domains, Inc.
   Registrar IANA ID: 299
   Registrar Abuse Contact Email: domainabuse@cscglobal.com
   Registrar Abuse Contact Phone: 8887802723
   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
   Domain Status: serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited
   Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
   Domain Status: serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited
   Name Server: A1-187.AKAM.NET
   Name Server: A11-65.AKAM.NET
   Name Server: A2-64.AKAM.NET
   Name Server: A22-67.AKAM.NET
   Name Server: A4-64.AKAM.NET
   Name Server: A5-66.AKAM.NET
   DNSSEC: unsigned
   URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2026-10-04T10:38:01Z <<<

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

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