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Measured 2026-08-24 · public DNS

Is montalembert-courbevoie.com protected against email spoofing?

Partially — montalembert-courbevoie.com quarantines unauthenticated mail (p=quarantine).

Stronger than 98% of schools in France

0% of the sector already enforces p=reject

See the sector barometerSee the whole sector

B

DMARC

p=quarantine

SPF

-all

DKIM

1 selector(s)

Eligible for BIMI: publish your logo to display it in inboxes

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Published record

v=DMARC1;p=quarantine;aspf=r;adkim=r

What this means

  • Policy p=quarantine: unaligned messages are moved to the spam folder.
  • No rua address: aggregate reports are not collected, which makes steering the hardening impossible.
  • At least one valid DKIM key published.
  • 1024-bit DKIM RSA key: still tolerated but below the state of the art — rotate to 2048 bits. (selector1 : 1024 bits)
  • No MTA-STS (_mta-sts): inbound SMTP connections remain exposed to TLS downgrade. Recommended alongside DMARC.
  • No TLS-RPT (_smtp._tls): the TLS failures encountered by senders are not reported.

History

  • 2026-08-24First measurementEnforcing (p=quarantine)

About Lycée Montalembert

Lycée Montalembert is a secondary education institution located in Courbevoie, in the Hauts-de-Seine department of the Île-de-France region. Named after Charles de Montalembert, a nineteenth-century French intellectual figure, the school enrolls students in a curriculum spanning both lower and upper secondary levels. Its location in the inner Paris suburbs places it within a dense urban area, close to La Défense, in a setting combining economic activity with residential neighborhoods. The institution's main mission is to provide general education, following the curricula defined by the French educational system. It offers a structured academic path, from lower secondary schooling through preparation for upper secondary examinations, with attention given to the pedagogical and educational support of its students. Like other institutions of its kind, it forms part of the educational offering available to families in Courbevoie and surrounding areas, contributing to the diversity of schooling options available locally alongside public institutions in the area. Lycée Montalembert holds a modest but identifiable place within the educational landscape of Hauts-de-Seine, as a private institution contributing to the local schooling provision. Its positioning is based on a mission of local educational service, oriented toward supporting young people residing in the Courbevoie area and neighboring municipalities. The institution is thus part of a broader network of schools, lower and upper secondary institutions present in the western Paris region, without claiming any particular national role beyond its local presence. The website montalembert-courbevoie.com is the institution's official site, presenting a general overview, the levels and programs of study offered, and practical information intended for families and students.

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