Measured 10/07/2026 · public DNS
Is lyceecassin.fr protected against email spoofing?
Not yet — lyceecassin.fr only monitors DMARC (p=none); spoofed mail can still be delivered.
Unchanged since 09/13/2026
Stronger than 70% of schools in France
1% of the sector already enforces p=reject
See the sector barometer →See the whole sector →
F
DMARC
p=none
SPF
~all
DKIM
none found
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Published record
v=DMARC1; p=none;What this means
- • Policy p=none: monitoring only, no unauthenticated message is blocked.
- • No rua address: aggregate reports are not collected, which makes steering the hardening impossible.
- • SPF ends with ~all (softfail): acceptable while observing, aim for -all in the end.
- • No DKIM key found on the common selectors (the domain may use non-standard selectors).
- • 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
- 09/13/2026First measurementMonitoring only (p=none)
About Lycée professionnel René Cassin
The Lycée professionnel René Cassin is a public secondary school located in Metz, in the Moselle department, in the Grand Est region of France. It belongs to the network of vocational high schools under the French national education system and offers programs leading to vocational qualifications, such as the Certificat d'Aptitude Professionnelle (CAP) and the vocational baccalaureate. The institution is named after René Cassin, a French jurist and Nobel Peace Prize laureate, known for his role in drafting the Universal Declaration of Human Rights.
Situated within the urban area of Metz, the school primarily serves students from the local and regional catchment area. Its scope of activity covers teaching in various vocational specialties, combining general education with technical or practical training, in accordance with national curricula defined by the Ministry of National Education. The school focuses on preparing students for professional integration and further studies, working in cooperation with local economic partners, particularly through work placement periods.
As a public institution, the Lycée professionnel René Cassin operates under the supervision of the Nancy-Metz education authority (rectorat) and the Grand Est regional council, the latter being responsible for managing buildings and equipment. The school also participates in local educational and cultural life, engaging in pedagogical projects and guidance initiatives aimed at middle school students and families considering vocational education pathways. It thus contributes to the territorial network of vocational training provision in Moselle.
The website lyceecassin.fr is the institution's official website, presenting its programs, pedagogical organization, news, and practical information intended for students, families, and partners.