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: jsnation.us
Registry Domain ID: D0667CF818CD549B98F81FFD97FE512EC-GDREG
Registrar WHOIS Server:
Registrar URL: https://key-systems.net
Updated Date: 2025-12-18T08:20:30Z
Creation Date: 2023-11-02T13:48:41Z
Registry Expiry Date: 2026-11-02T13:48:41Z
Registrar: Key-Systems GmbH
Registrar IANA ID: 269
Registrar Abuse Contact Email: abuse@key-systems.net
Registrar Abuse Contact Phone: +49.6894939685
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: C9941C7F4CD6541289BC36E5230235B9E-GDREG
Registrant Name: Roberts Haritonovs
Registrant Organization: GitNation
Registrant Street: Keurenplein
Registrant Street: Unit A7637 41
Registrant Street:
Registrant City: AMSTERDAM
Registrant State/Province:
Registrant Postal Code: 1069 CD
Registrant Country: NL
Registrant Phone: +44.7376237299
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: finance@gitnation.org
Registrant Application Purpose: P1
Registrant Nexus Category: C31/NL
Registry Admin ID: CE07D27CF1C7E4A73B7F49AD38D730038-GDREG
Admin Name: Roberts Haritonovs
Admin Organization: GitNation
Admin Street: Keurenplein
Admin Street: Unit A7637 41
Admin Street:
Admin City: AMSTERDAM
Admin State/Province:
Admin Postal Code: 1069 CD
Admin Country: NL
Admin Phone: +44.7376237299
Admin Phone Ext:
Admin Fax:
Admin Fax Ext:
Admin Email: finance@gitnation.org
Registry Tech ID: C1418324DD67243F5987D893A4DC8BF9F-GDREG
Tech Name: Roberts Haritonovs
Tech Organization: GitNation
Tech Street: Keurenplein
Tech Street: Unit A7637 41
Tech Street:
Tech City: AMSTERDAM
Tech State/Province:
Tech Postal Code: 1069 CD
Tech Country: NL
Tech Phone: +31.638482851
Tech Phone Ext:
Tech Fax:
Tech Fax Ext:
Tech Email: hi@gitnation.org
Name Server: fay.ns.cloudflare.com
Name Server: lynn.ns.cloudflare.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2026-10-04T05:59:36Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
.US WHOIS Complaint Tool - http://www.whoiscomplaints.us
Advanced WHOIS Instructions - http://whois.us/help.html
Registry Services, LLC, the Registry Administrator for .US, has collected this information for the WHOIS database through a .US-Accredited Registrar. This information is provided to you for informational purposes only and is designed to assist persons in determining contents of a domain name registration record in the registry database.
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% WHEN: Sun Oct 04 05:59:36 UTC 2026
