Gemessen am 2026-07-04 · öffentliches DNS
Ist chu-nantes.fr gegen E-Mail-Spoofing geschützt?
Teilweise — chu-nantes.fr verschiebt nicht authentifizierte Mails in die Quarantäne (p=quarantine).
Haltung unverändert seit dem 2026-06-19
Stärker geschützt als 70 % der große Krankenhäuser in Frankreich
10 % der Branche setzt bereits p=reject durch
B
DMARC
p=quarantine
SPF
-all
DKIM
keiner gefunden
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So behebst du es
Thomas, der DMARC-Copilot, findet jede Quelle, schreibt das exakte DNS und bringt deine Domain sicher von p=none zu p=reject.
Veröffentlichter Eintrag
v=DMARC1; p=quarantine; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:Dmarc_check@chu-nantes.fr; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;Was das bedeutet
- • Politique p=quarantine : les messages non alignés sont mis en indésirable.
- • Aucune clé DKIM trouvée sur les sélecteurs courants (le domaine peut utiliser des sélecteurs non standards).
Verlauf
- 2026-06-26Erste MessungIn Anwendung (p=quarantine)
Über CHU de Nantes
Nantes University Hospital (CHU de Nantes) is the primary university hospital centre serving the Pays de la Loire region in France. As a public health establishment, it delivers care, education and research services to a substantial population. Its information systems manage a significant volume of digital communications including patient correspondence, professional healthcare exchanges, administrative notifications, medical reports and inter-institutional communications. The chu-nantes.fr domain represents a critical vector of digital trust for these sensitive flows. The CHU faces substantial DMARC-related challenges. Domain spoofing via chu-nantes.fr presents a high-risk scenario: counterfeit emails could redirect patients or partners to malicious websites, compromise medical data or disrupt hospital administrative processes. As an institution subject to French healthcare sector regulations, including information security and service continuity requirements, the CHU must demonstrate rigorous control over email authentication. The NIS2 Directive, currently being transposed into French law, strengthens obligations for essential service operators. Implementing coherent SPF, DKIM and DMARC mechanisms on chu-nantes.fr is therefore an operational and regulatory necessity. It protects the integrity of sensitive communications, strengthens trust with patients and partners, and demonstrates compliance with cybersecurity standards applicable to public health structures. Nantes University Hospital exemplifies how a major public healthcare organisation must actively secure its email perimeter.