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: openbsd.amsterdam
Registry Domain ID: DNM_139668-SIDN
Registrar WHOIS Server: whois.registrar.internetx.com
Registrar URL: http://www.psi-usa.info
Updated Date: 2026-04-25T20:52:04Z
Creation Date: 2018-05-30T17:40:38Z
Registry Expiry Date: 2026-05-30T17:40:38Z
Registrar: InterNetX GmbH
Registrar IANA ID: 151
Registrar Abuse Contact Email: domain-abuse@internetx.com
Registrar Abuse Contact Phone: +49.094159559482
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: High5 B.V.
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province:
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: NL
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant of the queried domain name
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:
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext:
Admin Fax:
Admin Fax Ext:
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant of the queried domain name
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:
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext:
Tech Fax:
Tech Fax Ext:
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant of the queried domain name
Name Server: ns1.high5.nl
Name Server: ns2.high5.nl
Name Server: ns3.lowfive.nl
Name Server: ns4.lowfive.nl
DNSSEC: signedDelegation
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2026-05-06T10:38:56Z <<<
For more information on Whois status codes, please visit https://icann.org/epp.
Record maintained by: SIDN BV
Terms of use: No part of this publication may be reproduced,
published, stored in a retrieval system, or transmitted, in any form
or by any means, electronic, mechanical, recording, or otherwise,
without prior permission of the City of Amsterdam. These restrictions
apply equally to registrars, except in that reproductions and
publications are permitted insofar as they are reasonable, necessary
and solely in the context of the registration activities referred to
in the Registrar Agreement. Any use of this material for advertising,
targeting commercial offers or similar activities is explicitly
forbidden and liable to result in legal action. Anyone who is aware or
suspects that such activities are taking place is asked to inform the
City of Amsterdam.
Domain Name: openbsd.amsterdam
Registry Domain ID: DNM_139668-SIDN
Registrar WHOIS Server: whois.registrar.internetx.com
Registrar URL: https://registrar.internetx.com
Updated Date: 2026-04-25T20:52:09Z
Creation Date: 2018-05-30T17:40:38Z
Registrar Registration Expiration Date: 2026-05-30T17:40:38Z
Registrar: InterNetX GmbH
Registrar IANA ID: 151
Registrar Abuse Contact Email: domain-abuse@internetx.com
Registrar Abuse Contact Phone: +49.94159559482
Domain Status: clientTransferProhibited https://www.icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: High5 B.V.
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: Utrecht
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: NL
Registrant Phone: +31.848673692
Registrant Phone Ext:
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: hostmaster@high5.nl
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/openbsd.amsterdam
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/openbsd.amsterdam
Name Server: ns1.high5.nl
Name Server: ns2.high5.nl
Name Server: ns3.lowfive.nl
Name Server: ns4.lowfive.nl
DNSSEC: signedDelegation
URL of the ICANN WHOIS Data Problem Reporting System: https://wdprs.internic.net/
>>> Last update of WHOIS database: 2026-05-06T10:38:56Z <<<
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: 713 msec
% WHEN: Wed May 06 10:38:56 UTC 2026
