Measured 09/20/2026 · public DNS
Is mairie-sionlesmines.fr protected against email spoofing?
No — mairie-sionlesmines.fr has no DMARC policy and can be spoofed.
Unchanged since 08/20/2026
Lowest posture among city halls in France
12% of the sector already enforces p=reject
See the sector barometer →See the whole sector →
F
DMARC
absent
SPF
-all
DKIM
none found
Watch this domain for free
No time to create an account? Leave your email: you’ll be notified if the DMARC configuration of mairie-sionlesmines.fr changes (a regression, or a domain still left unprotected).
How to fix it
Thomas, your AI-powered virtual CISO, finds every sender, writes the exact DNS, and walks your domain safely from p=none to p=reject.
What this means
- • No DMARC record published (_dmarc). Receivers have no policy to apply.
- • 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
- 08/20/2026First measurementNo DMARC
About Sion-les-Mines
The town hall of Sion-les-Mines is the administrative institution representing the French municipality of Sion-les-Mines, located in the Loire-Atlantique department, in the Pays de la Loire region. It serves as the local executive body responsible for managing communal affairs and implementing decisions made by the municipal council, under the authority of the mayor elected by its members.
The commune's name reflects its history linked to mining activity that developed in the Châteaubriant area, an activity that left a lasting mark on the territory before its decline. Today, Sion-les-Mines retains a rural character, set within a hedgerow landscape typical of this part of Loire-Atlantique, close to the boundary with neighboring departments. The municipality belongs to an intercommunal grouping that structures local cooperation in matters of spatial planning, public services, and economic development.
The town hall's responsibilities cover the full range of competencies assigned to French municipalities: civil registry, management of municipal facilities, urban planning, local social action, maintenance of communal roads, and the organization of elections. It also acts as a link between residents and departmental and regional administrations, while carrying out projects specific to local development, whether public infrastructure, community life activities, or preservation of the communal heritage. The municipal council, composed of locally elected representatives, deliberates on the budget, investments, and general orientations of the commune, within the legal framework applicable to French local authorities.
The website mairie-sionlesmines.fr is the official website of the municipality, providing practical information on municipal life, administrative procedures, and local news.