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: hhsc.ca
Registry Domain ID: D15197-CIRA
Registrar WHOIS Server: whois.ca.fury.ca
Registrar URL: https://help.opensrs.com/hc/en-us
Updated Date: 2025-09-10T12:54:53Z
Creation Date: 2000-10-17T18:01:41Z
Registry Expiry Date: 2028-09-10T04:00:00Z
Registrar: Tucows.com Co.
Registrar IANA ID: not applicable
Registrar Abuse Contact Email: compliance@tucows.com
Registrar Abuse Contact Phone: +1.4165350123
Registrar Abuse Contact Phone Ext:
Domain Status: ok https://icann.org/epp#ok
Registry Registrant ID: R10921-CIRA
Registrant Name: HHSC (TM), Hamilton Health Sciences Corporation
Registrant Organization:
Registrant Street: 293 Wellington Street West, Suite 133
Registrant City: Hamilton
Registrant State/Province: ON
Registrant Postal Code: L8L8E7
Registrant Country: CA
Registrant Phone: +1.9055212100
Registrant Phone Ext: 49981
Registrant Fax: +1.9055215006
Registrant Fax Ext:
Registrant Email: sittmann@hhsc.ca
Registry Admin ID: C864201-CIRA
Admin Name: Mr Manfred Sittmann
Admin Organization: Hamilton Health Sciences
Admin Street: 293 Wellington Street West, Suite 133
Admin City: Hamilton
Admin State/Province: ON
Admin Postal Code: L8L 8E7
Admin Country: CA
Admin Phone: 905.521.2100
Admin Phone Ext: 49981
Admin Fax: 905.521.5006
Admin Fax Ext:
Admin Email: sittmann@hhsc.ca
Registry Tech ID: C989858-CIRA
Tech Name: Mr Gary Rankin
Tech Organization:
Tech Street: 1200 Main Street West
Tech City: Hamilton
Tech State/Province: ON
Tech Postal Code: L8N 3Z5
Tech Country: CA
Tech Phone: 905.521.2100
Tech Phone Ext: 73366
Tech Fax: 905.521.5006
Tech Fax Ext:
Tech Email: ranking@hhsc.ca
Registry Billing ID:
Billing Name:
Billing Organization:
Billing Street:
Billing City:
Billing State/Province:
Billing Postal Code:
Billing Country:
Billing Phone:
Billing Phone Ext:
Billing Fax:
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Name Server: alpha1.hhsc.ca
Name Server: beta1.hhsc.ca
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2026-10-16T08:46:33Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
%
% Use of CIRA's WHOIS service is governed by the Terms of Use in its Legal
% Notice, available at https://www.cira.ca/en/resources/documents/about/website-terms-use
%
% (c) 2026 Canadian Internet Registration Authority, (http://www.cira.ca/)
Domain Name: hhsc.ca
Registry Domain ID: D15197-CIRA
Registrar WHOIS Server: whois.ca.fury.ca
Registrar URL: https://help.opensrs.com/hc/en-us
Updated Date: 2025-09-10T12:54:53Z
Creation Date: 2000-10-17T18:01:41Z
Registry Expiry Date: 2028-09-10T04:00:00Z
Registrar: Tucows.com Co.
Registrar IANA ID: not applicable
Registrar Abuse Contact Email: compliance@tucows.com
Registrar Abuse Contact Phone: +1.4165350123
Registrar Abuse Contact Phone Ext:
Domain Status: ok https://icann.org/epp#ok
Registry Registrant ID: R10921-CIRA
Registrant Name: HHSC (TM), Hamilton Health Sciences Corporation
Registrant Organization:
Registrant Street: 293 Wellington Street West, Suite 133
Registrant City: Hamilton
Registrant State/Province: ON
Registrant Postal Code: L8L8E7
Registrant Country: CA
Registrant Phone: +1.9055212100
Registrant Phone Ext: 49981
Registrant Fax: +1.9055215006
Registrant Fax Ext:
Registrant Email: sittmann@hhsc.ca
Registry Admin ID: C864201-CIRA
Admin Name: Mr Manfred Sittmann
Admin Organization: Hamilton Health Sciences
Admin Street: 293 Wellington Street West, Suite 133
Admin City: Hamilton
Admin State/Province: ON
Admin Postal Code: L8L 8E7
Admin Country: CA
Admin Phone: 905.521.2100
Admin Phone Ext: 49981
Admin Fax: 905.521.5006
Admin Fax Ext:
Admin Email: sittmann@hhsc.ca
Registry Tech ID: C989858-CIRA
Tech Name: Mr Gary Rankin
Tech Organization:
Tech Street: 1200 Main Street West
Tech City: Hamilton
Tech State/Province: ON
Tech Postal Code: L8N 3Z5
Tech Country: CA
Tech Phone: 905.521.2100
Tech Phone Ext: 73366
Tech Fax: 905.521.5006
Tech Fax Ext:
Tech Email: ranking@hhsc.ca
Registry Billing ID:
Billing Name:
Billing Organization:
Billing Street:
Billing City:
Billing State/Province:
Billing Postal Code:
Billing Country:
Billing Phone:
Billing Phone Ext:
Billing Fax:
Billing Fax Ext:
Billing Email:
Name Server: alpha1.hhsc.ca
Name Server: beta1.hhsc.ca
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2026-10-16T08:46:33Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
%
% Use of CIRA's WHOIS service is governed by the Terms of Use in its Legal
% Notice, available at https://www.cira.ca/en/resources/documents/about/website-terms-use
%
% (c) 2026 Canadian Internet Registration Authority, (http://www.cira.ca/)
% Query time: 655 msec
% WHEN: Fri Oct 16 08:46:33 UTC 2026
