greenvoice.fr

DNSSEC · The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.

SPF · SPF record needs 4 DNS lookups (limit is 10). Problems found: include:netblocks.greenpeace.org does not exist or has no records.

DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.

DMARC · DMARC record has no rua tag, so you receive no aggregate reports about who sends mail as your domain. Add rua=mailto:...

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: mail (1024 bits), s2 (1024 bits). Rotate to a 2048-bit key.

SPF · 1 include/redirect target does not exist or has no records (limit is 2). This usually is a stale include; remove it.

MX · The PTR name of these addresses does not resolve back to the same address: 2001:4b98:dc4:8::216 -> spool7.mail.gandi.net, 2001:4b98:dc4:8::217 -> spool8.mail.gandi.net, 2001:4b98:dc4:8::215 -> spool6.mail.gandi.net.

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.