ac-nancy-metz.fr

Delegation · None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.

SOA · The nameservers serve different versions of the zone: 2026063399 on ns1.ac-nancy-metz.fr (195.83.120.100); 2026063401 on ns1.ac-nantes.fr (195.83.167.1), ns2.ac-nancy-metz.fr (195.83.120.200), ns2.ac-nantes.fr (195.83.167.2). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.

MX · The following MX hosts could not be resolved to IPv6 addresses: msg-a85.education.gouv.fr, msg-b85.education.gouv.fr

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: default (1024 bits). Rotate to a 2048-bit key.

TLS · MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.

BIMI · The logo is published without a Verified Mark Certificate. Gmail and Apple Mail only show BIMI logos with a VMC or CMC; Yahoo shows it without one.