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: mackoff.ca
Registry Domain ID: D72504-CIRA
Registrar WHOIS Server: whois.ca.fury.ca
Registrar URL: webnames.ca
Updated Date: 2026-04-16T15:02:58Z
Creation Date: 2001-01-31T23:16:51Z
Registry Expiry Date: 2030-01-31T05:00:00Z
Registrar: Webnames.ca Inc.
Registrar IANA ID: 456
Registrar Abuse Contact Email: abuse@webnames.ca
Registrar Abuse Contact Phone: +1.8662217878
Registrar Abuse Contact Phone Ext:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: R52032-CIRA
Registrant Name: Mackoff & Co. Barristers and Solicitors
Registrant Organization:
Registrant Street: 808 Nelson Street
Registrant City: Vancouver
Registrant State/Province: BC
Registrant Postal Code: V6Z2H2
Registrant Country: CA
Registrant Phone: +1.6046331888
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: mubell@mackoff.ca
Registry Admin ID: C943491-CIRA
Admin Name: Michelle Ubell
Admin Organization: Mackoff & Co. Barristers and Solicitors
Admin Street: 808 Nelson Street , Suite 1214
Admin City: Vancouver
Admin State/Province: BC
Admin Postal Code: V6Z 2H2
Admin Country: CA
Admin Phone: (604) 633-1888
Admin Phone Ext:
Admin Fax:
Admin Fax Ext:
Admin Email: mubell@mackoff.ca
Registry Tech ID: C943492-CIRA
Tech Name: Domain Administration Role
Tech Organization: Radiant Communications Ltd.
Tech Street: 885 W. Georgia Street , Suite 1660
Tech City: Vancouver
Tech State/Province: BC
Tech Postal Code: V6C 3E8
Tech Country: CA
Tech Phone: (604) 257-0500
Tech Phone Ext:
Tech Fax: (604) 608-0999
Tech Fax Ext:
Tech Email: domains@radiant.net
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: noah.ns.cloudflare.com
Name Server: rihana.ns.cloudflare.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2026-05-05T13:40:37Z <<<
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: mackoff.ca
Registry Domain ID: D72504-CIRA
Registrar WHOIS Server: whois.ca.fury.ca
Registrar URL: webnames.ca
Updated Date: 2026-04-16T15:02:58Z
Creation Date: 2001-01-31T23:16:51Z
Registry Expiry Date: 2030-01-31T05:00:00Z
Registrar: Webnames.ca Inc.
Registrar IANA ID: 456
Registrar Abuse Contact Email: abuse@webnames.ca
Registrar Abuse Contact Phone: +1.8662217878
Registrar Abuse Contact Phone Ext:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: R52032-CIRA
Registrant Name: Mackoff & Co. Barristers and Solicitors
Registrant Organization:
Registrant Street: 808 Nelson Street
Registrant City: Vancouver
Registrant State/Province: BC
Registrant Postal Code: V6Z2H2
Registrant Country: CA
Registrant Phone: +1.6046331888
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: mubell@mackoff.ca
Registry Admin ID: C943491-CIRA
Admin Name: Michelle Ubell
Admin Organization: Mackoff & Co. Barristers and Solicitors
Admin Street: 808 Nelson Street , Suite 1214
Admin City: Vancouver
Admin State/Province: BC
Admin Postal Code: V6Z 2H2
Admin Country: CA
Admin Phone: (604) 633-1888
Admin Phone Ext:
Admin Fax:
Admin Fax Ext:
Admin Email: mubell@mackoff.ca
Registry Tech ID: C943492-CIRA
Tech Name: Domain Administration Role
Tech Organization: Radiant Communications Ltd.
Tech Street: 885 W. Georgia Street , Suite 1660
Tech City: Vancouver
Tech State/Province: BC
Tech Postal Code: V6C 3E8
Tech Country: CA
Tech Phone: (604) 257-0500
Tech Phone Ext:
Tech Fax: (604) 608-0999
Tech Fax Ext:
Tech Email: domains@radiant.net
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: noah.ns.cloudflare.com
Name Server: rihana.ns.cloudflare.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2026-05-05T13:40:37Z <<<
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: 720 msec
% WHEN: Tue May 05 13:40:36 UTC 2026
