Gemessen am 2026-07-04 · öffentliches DNS
Ist rennes.fr gegen E-Mail-Spoofing geschützt?
Noch nicht — rennes.fr beobachtet DMARC nur (p=none); gefälschte Mails können weiterhin zugestellt werden.
Haltung unverändert seit dem 2026-06-19
Stärker geschützt als 33 % der Rathäuser in Frankreich
12 % der Branche setzt bereits p=reject durch
F
DMARC
p=none
SPF
nicht vorhanden
DKIM
keiner gefunden
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=none; rua=mailto:dmarc@rennesmetropole.fr; ruf=mailto:dmarc@rennesmetropole.fr; fo=1Was das bedeutet
- • Politique p=none : surveillance seule, aucun message non authentifié n'est bloqué.
- • Aucun enregistrement SPF (v=spf1) publié sur le domaine.
- • Aucune clé DKIM trouvée sur les sélecteurs courants (le domaine peut utiliser des sélecteurs non standards).
Verlauf
- 2026-06-26Erste MessungNur Beobachtung (p=none)
Über Rennes
The City of Rennes, capital of Brittany and a major French local government organization, manages a strategic email perimeter encompassing its administrative services, elected officials, municipal staff, and all official correspondence with citizens and institutional partners. The rennes.fr domain serves as a critical communication vector for this public organization, carrying sensitive documents, official notifications, and administrative data subject to strict legal confidentiality and authenticity requirements.
Securing the rennes.fr domain through the DMARC protocol is essential given the risks of identity spoofing and phishing attacks targeting to undermine public trust in municipal institutions. Cyberattacks targeting public domains directly impact the relationship between the local government and its constituents, creating significant reputational and operational risks.
As a French public sector organization, Rennes must comply with strengthened cybersecurity requirements established by the NIS2 Directive and DORA regulation, which impose robust standards for email authentication and protection against digital fraud. Full implementation of DMARC, combined with SPF and DKIM protocols, constitutes a fundamental element of the security posture expected for public entities of importance.
The DMARC Observatory on dmarc.com monitors the evolution of rennes.fr email security, enabling measurement of progressive protection strengthening and identification of best practices adopted by this local authority to preserve the integrity of its official communications and maintain institutional credibility.