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: sheridanc.on.ca
Registry Domain ID: D728377-CIRA
Registrar WHOIS Server: whois.ca.fury.ca
Registrar URL: www.internic.ca
Updated Date: 2026-03-05T05:10:03Z
Creation Date: 2000-10-03T20:24:43Z
Registry Expiry Date: 2027-01-19T05:00:00Z
Registrar: Internic.ca Inc.
Registrar IANA ID: not applicable
Registrar Abuse Contact Email: abuse@internic.ca
Registrar Abuse Contact Phone: +1.8886988850
Registrar Abuse Contact Phone Ext:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registry Registrant ID: 62399408-CIRA
Registrant Name: Sheridan College
Registrant Organization:
Registrant Street: 1430 Trafalgar Road
Registrant City: Oakville
Registrant State/Province: ON
Registrant Postal Code: L6H2L1
Registrant Country: CA
Registrant Phone: +1.9058459430
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: dns-admin@sheridanc.on.ca
Registry Admin ID: 1257801-CIRA
Admin Name: James Duncan
Admin Organization: The Sheridan College Institute of Technology and Advanced Learning
Admin Street: 1430 Trafalgar Road
Admin City: Oakville
Admin State/Province: ON
Admin Postal Code: L6H2L1
Admin Country: CA
Admin Phone: +1.9058459430
Admin Phone Ext: 2556
Admin Fax:
Admin Fax Ext:
Admin Email: dns-admin@sheridanc.on.ca
Registry Tech ID: 62395625-CIRA
Tech Name: Ian Colquhoun
Tech Organization: The Sheridan College Institute of Technology and Advanced Learning
Tech Street: 1430 Trafalgar Road
Tech City: Oakville
Tech State/Province: ON
Tech Postal Code: L6H2L1
Tech Country: CA
Tech Phone: +1.9058459430
Tech Phone Ext: 4130
Tech Fax:
Tech Fax Ext:
Tech Email: dns-tech@sheridancollege.ca
Registry Billing ID:
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Name Server: ns1.sheridanc.on.ca
Name Server: ns2.sheridanc.on.ca
Name Server: ns3.sheridanc.on.ca
Name Server: ns4.sheridanc.on.ca
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2026-10-18T08:12:01Z <<<
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: sheridanc.on.ca
Registry Domain ID: D728377-CIRA
Registrar WHOIS Server: whois.ca.fury.ca
Registrar URL: www.internic.ca
Updated Date: 2026-03-05T05:10:03Z
Creation Date: 2000-10-03T20:24:43Z
Registry Expiry Date: 2027-01-19T05:00:00Z
Registrar: Internic.ca Inc.
Registrar IANA ID: not applicable
Registrar Abuse Contact Email: abuse@internic.ca
Registrar Abuse Contact Phone: +1.8886988850
Registrar Abuse Contact Phone Ext:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registry Registrant ID: 62399408-CIRA
Registrant Name: Sheridan College
Registrant Organization:
Registrant Street: 1430 Trafalgar Road
Registrant City: Oakville
Registrant State/Province: ON
Registrant Postal Code: L6H2L1
Registrant Country: CA
Registrant Phone: +1.9058459430
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: dns-admin@sheridanc.on.ca
Registry Admin ID: 1257801-CIRA
Admin Name: James Duncan
Admin Organization: The Sheridan College Institute of Technology and Advanced Learning
Admin Street: 1430 Trafalgar Road
Admin City: Oakville
Admin State/Province: ON
Admin Postal Code: L6H2L1
Admin Country: CA
Admin Phone: +1.9058459430
Admin Phone Ext: 2556
Admin Fax:
Admin Fax Ext:
Admin Email: dns-admin@sheridanc.on.ca
Registry Tech ID: 62395625-CIRA
Tech Name: Ian Colquhoun
Tech Organization: The Sheridan College Institute of Technology and Advanced Learning
Tech Street: 1430 Trafalgar Road
Tech City: Oakville
Tech State/Province: ON
Tech Postal Code: L6H2L1
Tech Country: CA
Tech Phone: +1.9058459430
Tech Phone Ext: 4130
Tech Fax:
Tech Fax Ext:
Tech Email: dns-tech@sheridancollege.ca
Registry Billing ID:
Billing Name:
Billing Organization:
Billing Street:
Billing City:
Billing State/Province:
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Billing Fax:
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Billing Email:
Name Server: ns1.sheridanc.on.ca
Name Server: ns2.sheridanc.on.ca
Name Server: ns3.sheridanc.on.ca
Name Server: ns4.sheridanc.on.ca
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2026-10-18T08:12:01Z <<<
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: 553 msec
% WHEN: Sun Oct 18 08:12:01 UTC 2026
