Le champs SPF est un champs important pour la délivrabilité de vos e-mails. Mal configuré, absent, cela peut vous occasionner des rejets de réception des e-mails que vous envoyez à vos correspondants. Un autre champs TXT important est la signature DKIM qui jour également, énormément, en faveur de la délivrabilité des vos e-mails
Plus généralement, le SPF, ou Sender Policy Framework, est un système de vérification conçu pour empêcher l'usurpation d'adresse électronique en validant l'expéditeur d'un e-mail. Lorsqu'un domaine met en place un enregistrement SPF, il spécifie quels serveurs de messagerie sont autorisés à envoyer des e-mails. Lorsqu'un e-mail est reçu, le serveur de réception peut vérifier cet enregistrement pour s'assurer que l'e-mail provient d'un serveur des serveurs autorisés. Si ce n'est pas le cas, il peut être marqué comme suspect ou rejeté, ce qui aide à réduire le spam et le phishing en vérifiant que les e-mails proviennent bien de la source autorisés.
Domain Name: SUTTER.RUHR
Registry Domain ID: D321604270-CNIC
Registrar WHOIS Server: whois.registrar.internetx.com
Registrar URL: https://www.internetx.com/
Updated Date: 2026-02-26T00:11:33.0Z
Creation Date: 2014-02-25T10:16:21.0Z
Registry Expiry Date: 2027-02-25T23:59:59.0Z
Registrar: InterNetX GmbH
Registrar IANA ID: 151
Domain Status: ok https://icann.org/epp#ok
Registrant Organization: Sutter Telefonbuchverlag GmbH
Registrant State/Province: NRW
Registrant Country: DE
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: A.NS14.NET
Name Server: B.NS14.NET
Name Server: C.NS14.NET
Name Server: D.NS14.NET
DNSSEC: unsigned
Registrar Abuse Contact Email: domain-abuse@internetx.com
Registrar Abuse Contact Phone: +49.941595590
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2026-04-24T14:39:12.0Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
>>> IMPORTANT INFORMATION ABOUT THE DEPLOYMENT OF RDAP: please visit
https://www.centralnicregistry.com/support/information/rdap <<<
The registration data available in this service is limited. Additional
data may be available at https://lookup.icann.org
The Whois and RDAP services are provided by CentralNic, and contain
information pertaining to Internet domain names registered by our
our customers. By using this service you are agreeing (1) not to use any
information presented here for any purpose other than determining
ownership of domain names, (2) not to store or reproduce this data in
any way, (3) not to use any high-volume, automated, electronic processes
to obtain data from this service. Abuse of this service is monitored and
actions in contravention of these terms will result in being permanently
blacklisted. All data is (c) CentralNic Ltd (https://www.centralnicregistry.com)
Access to the Whois and RDAP services is rate limited. For more
information, visit https://centralnicregistry.com/policies/whois-guidance.
Domain Name: sutter.ruhr
Registry Domain ID: D321604270-CNIC
Registrar WHOIS Server: whois.registrar.internetx.com
Registrar URL: https://registrar.internetx.com
Updated Date: 2026-04-18T13:12:44Z
Creation Date: 2014-02-25T10:16:21Z
Registrar Registration Expiration Date: 2027-02-25T10:16:21Z
Registrar: InterNetX GmbH
Registrar IANA ID: 151
Registrar Abuse Contact Email: domain-abuse@internetx.com
Registrar Abuse Contact Phone: +49.94159559482
Domain Status: ok https://www.icann.org/epp#OK
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Sutter Telefonbuchverlag GmbH
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: NRW
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: DE
Registrant Phone: +49.2013202545
Registrant Phone Ext:
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: hostmaster@sutter.ruhr
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: https://whoispro.domain-robot.org/whois/sutter.ruhr
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: https://whoispro.domain-robot.org/whois/sutter.ruhr
Name Server: a.ns14.net
Name Server: b.ns14.net
Name Server: c.ns14.net
Name Server: d.ns14.net
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: https://wdprs.internic.net/
>>> Last update of WHOIS database: 2026-04-24T14:39:12Z <<<
For more information on Whois status codes, please visit https://www.icann.org/epp
# Terms and conditions:
#
# The data in the WHOIS database of InterNetX GmbH is provided by
# InterNetX GmbH for information purposes, and to assist persons in
# obtaining information about or related to a domain name registration
# record. InterNetX GmbH does not guarantee its accuracy. By submitting
# a WHOIS query, you agree that you will use this data only for lawful
# purposes and that, under no circumstances, you will use this data to
# (1) allow, enable, or otherwise support the transmission of mass
# unsolicited, commercial advertising or solicitations via E-mail
# (spam); or
# (2) enable high volume, automated, electronic processes that apply to
# InterNetX GmbH or its systems.
# InterNetX GmbH reserves the right to modify these terms at any time.
# By submitting this query, you agree to abide by this policy.
# You acknowledge and agree that InterNetX reserves the right to take
# appropriate action against you in the event of any breach of the WHOIS
# system and may prevent you from using the WHOIS tools.
#
% Query time: 534 msec
% WHEN: Fri Apr 24 14:39:12 UTC 2026
