DMARC

Gemessen am 2026-07-04 · öffentliches DNS

Ist colmar.fr gegen E-Mail-Spoofing geschützt?

Ja — colmar.fr setzt DMARC durch (p=reject).

Haltung unverändert seit dem 2026-06-19

Stärker geschützt als 93 % der Rathäuser in Frankreich

12 % der Branche setzt bereits p=reject durch

Branchenbarometer ansehen

A

DMARC

p=reject

SPF

-all

DKIM

2 Selektor(en)

BIMI-fähig: Veröffentliche dein Logo, um es in den Postfächern anzuzeigen

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=reject; pct=100; rua=mailto:dmarc@colmar.fr; ruf=mailto:dmarc@colmar.fr

Was das bedeutet

  • Politique p=reject : protection maximale contre l’usurpation.
  • Au moins une clé DKIM valide publiée.

Verlauf

  • 2026-06-26Erste MessungGeschützt (p=reject)

Über Colmar

The City of Colmar, Alsace's major capital and significant French territorial authority, manages extensive email communications encompassing its municipal workforce, administrative services, and official correspondence with citizens and institutional partners. The domain colmar.fr serves as a critical vector of public trust, used for administrative notifications, service requests, public procurement, and sensitive communications to constituents. In this context, securing email authentication holds strategic importance. DMARC, complemented by SPF and DKIM, protects the colmar.fr domain against spoofing and phishing attacks—risks particularly acute for public entities targeted by fraud campaigns and identity impersonation schemes. A territorial authority exposes citizens and partners to counterfeiting risks when communication channels lack adequate security mechanisms. This protection aligns with strengthened regulatory frameworks. The NIS2 Directive (Directive on Network and Information System Security) imposes enhanced cybersecurity obligations on public authorities, while the forthcoming DORA Directive (Digital Operational Resilience Act), applicable to critical sectors, reinforces digital resilience requirements. Robust DMARC implementation ranks among fundamental email security hygiene measures. The DMARC Observatory at dmarc.com documents the deployment of these email authentication protocols for colmar.fr, contributing to transparency and accountability of French public institutions in cybersecurity matters. Such monitoring enables stakeholders to assess institutional commitment to protecting citizens' digital communications and official correspondence integrity.

In dieser Branche