Measured 09/20/2026 · public DNS
Is crosne.fr protected against email spoofing?
Yes — crosne.fr enforces DMARC (p=reject).
Unchanged since 09/13/2026
Stronger than 95% of city halls in France
12% of the sector already enforces p=reject
See the sector barometer →See the whole sector →
A
DMARC
p=reject
SPF
-all
DKIM
2 selector(s)
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Published record
v=DMARC1 ; p=reject; rua=mailto:postmaster@crosne.fr; pct=100; adkim=s; aspf=sWhat this means
- • Policy p=reject: maximum protection against spoofing.
- • At least one valid DKIM key published.
- • 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 measurementProtected (p=reject)
About Crosne
Crosne is a French municipality located in the Essonne department, in the Île-de-France region. It lies in the Yerres valley, southeast of Paris, within a territory shaped by its proximity to the capital and by the watercourse that runs through the area. Part of the Évry arrondissement, the commune belongs to an intercommunal grouping that brings together several neighbouring municipalities along the Yerres valley, allowing local policies to be coordinated across the wider area.
The history of Crosne is linked to that of the other towns bordering the Yerres, whose development historically relied on agriculture and the presence of water, before gradually undergoing urbanisation connected to the expansion of the Paris region. The territory retains elements of built and natural heritage reflecting this evolution, while progressively taking on residential and service functions typical of municipalities in the outer Paris metropolitan area.
As a local authority, Crosne exercises the powers assigned to French communes: management of local public facilities, civil registry services, urban planning, local social action, and the organisation of services for residents. Its municipal council, headed by an elected mayor, sets local priorities regarding development, community life, education and living conditions, in coordination with the intercommunal and departmental bodies to which it belongs. The commune thus takes part in the administrative and territorial organisation of the Essonne department.
The website crosne.fr is the official institutional site of the commune, presenting information on municipal life, administrative procedures, public facilities and local news.