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: sfo.hamburg
Registry Domain ID: D0000143427-HAMBURG
Registrar WHOIS Server: whois.udag.net
Registrar URL: https://www.united-domains.de
Updated Date: 2026-05-24T15:38:34Z
Creation Date: 2018-08-03T10:56:51Z
Registry Expiry Date: 2027-08-03T10:56:51Z
Registrar: united-domains GmbH
Registrar IANA ID: 1408
Registrar Abuse Contact Email: support@united-domains.de
Registrar Abuse Contact Phone: +49.8151368670
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: dokudns.dokumenta.net
Name Server: dokudns01.dokumenta.net
Name Server: ns01.dokumenta.net
Name Server: ns02.dokumenta.net
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of Whois database: 2026-06-20T01:27:39Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
% Copyright (c) 2026 by HAMBURG Top-Level-Domain GmbH
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Domain Name: sfo.hamburg
Registry Domain ID: D0000143427-HAMBURG
Registrar WHOIS Server: whois.udag.net
Registrar URL: https://www.united-domains.de/
Updated Date: 2026-05-24T15:38:34Z
Creation Date: 2018-08-03T10:56:51Z
Registrar Registration Expiration Date: 2027-08-03T10:56:51Z
Registrar: united domains AG
Registrar IANA ID: 1408
Registrar Abuse Contact Email: abuse@united-domains.de
Registrar Abuse Contact Phone: +49.8151368670
Reseller:
Domain Status: clientTransferProhibited https://www.icann.org/epp#clientTransferProhibited
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Registrant Country: DE
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Registrant Email: https://www.united-domains.de/domain-inhaber-kontaktieren
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Admin Email: https://www.united-domains.de/domain-inhaber-kontaktieren
Registry Tech ID:
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Tech Email: https://www.united-domains.de/domain-inhaber-kontaktieren
Name Server: ns02.dokumenta.net
Name Server: ns01.dokumenta.net
Name Server: dokudns01.dokumenta.net
Name Server: dokudns.dokumenta.net
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2026-05-24T15:38:34Z <<<
For more information on Whois status codes, please visit https://www.icann.org/epp
WHOIS data will not be displayed due to privacy legislation. Please contact united-domains AG at whois@united-domains.de if you have legitimate interest to contact the registrant of the record.
; Whois Server Version 2.05
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% Query time: 843 msec
% WHEN: Sat Jun 20 01:27:38 UTC 2026
