chateauroux-metropole.fr

Checked 22 October 2026, 02:14 UTC · via 8.8.8.8
!Passed with warnings
24 passed 4 warnings 0 failed 3 info

SPF

pass

SPF record published

Found

Record
v=spf1 ip4:185.254.147.7 ip4:176.31.92.163 include:eu._netblocks.mimecast.com include:de._netblocks.mimecast.com include:_spf.entrouvert.com include:spf.express-mail.com include:spf.mailjet.com include:mailgun.org ~all
DNS lookups
10 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 10 of 10 DNS lookups #2
    SPF record needs 10 DNS lookups (limit is 10).
  • ✓ Ends with ~all #3
    SPF record properly uses ~all to restrict unauthorized senders.
  • ✓ Record published #6
    SPF record exists for this domain.
  • ✓ Single record #16
    Exactly one SPF record is published.
  • ✓ Valid syntax #25
    All SPF mechanisms and modifiers are valid.
  • ✓ No void lookups #26
    All include/redirect targets exist.
  • ✓ No overly broad IP ranges #27
    All ip4/ip6 ranges are narrow enough.

DMARC

warn

p=reject (_dmarc.chateauroux-metropole.fr)

Found

Record
v=DMARC1;p=reject;rua=mailto:abuse@chateauroux-metropole.fr,mailto:aeglaxfb@ag.eu.dmarcadvisor.com;sp=none;aspf=s;
Found at
_dmarc.chateauroux-metropole.fr
External report address
mailto:aeglaxfb@ag.eu.dmarcadvisor.com (authorized)
TagValueMeaning
vDMARC1Version
prejectPolicy
spnoneSubdomain policy
ruamailto:abuse@chateauroux-metropole.fr,mailto:aeglaxfb@ag.eu.dmarcadvisor.comAggregate report addresses
aspfsSPF alignment (r = relaxed, s = strict)

Checks

  • ✓ Policy: reject #4
    DMARC policy is set to 'reject', which provides the strongest protection against email spoofing.
  • ✓ Record published #5
    DMARC record exists for this domain.
  • ✓ Valid syntax #17
    DMARC record syntax is valid.
  • ✓ Applies to 100% of mail #18
    DMARC policy applies to all failing mail.
  • ✓ Aggregate reports enabled #19
    Aggregate reports are sent to: mailto:abuse@chateauroux-metropole.fr, mailto:aeglaxfb@ag.eu.dmarcadvisor.com
  • !
    Subdomains unprotected (sp=none)
    DMARC subdomain policy is sp=none, so spoofed mail from subdomains is not blocked. Consider sp=quarantine or sp=reject.
    #20
  • ✓ External report addresses authorized #29
    Report addresses in other domains have published their authorization.

DKIM

warn

No keys found under the checked selectors

Found

Selectors
None found
_domainkey
NOERROR

Checks

  • !
    No key under common selectors
    The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.
    #7

DNSSEC

pass

Signed, DS published at parent

Found

DNSKEY records
Yes (2)
DS at parent
Yes
Algorithms
RSASHA256 (8)
Key tags
45643, 36284
Signatures valid until
4 November 2026, 08:10 UTC

Checks

  • ✓ Signed, DS published at parent #8
    DNSSEC is enabled for this domain (DNSKEY and DS present), providing additional security for DNS lookups.
  • ✓ Signatures valid until 2026-11-04 #21
    DNSKEY signatures are valid until 2026-11-04T08:10:57Z.

MX

warn

2 mail servers

Found

PriorityHostRecordsReverse DNS
10de-smtp-inbound-1.mimecast.comA 194.104.110.22 A 194.104.108.22de-smtp-inbound-1.mimecast.com ✓ de-smtp-inbound-2.mimecast.com ✓
10de-smtp-inbound-2.mimecast.comA 194.104.108.22 A 194.104.110.22de-smtp-inbound-1.mimecast.com ✓ de-smtp-inbound-1.mimecast.com ✓

Checks

  • ✓ 2 MX records #9
    Found 2 MX records for this domain.
  • ✓ All hosts resolve #10
    All MX records resolve to valid IP addresses.
  • !
    Hosts without IPv6
    The following MX hosts could not be resolved to IPv6 addresses: de-smtp-inbound-1.mimecast.com, de-smtp-inbound-2.mimecast.com
    #11
  • ✓ Redundant MX hosts #12
    Found 2 MX records, which provides redundancy for email delivery.
  • ✓ At most 5 MX records #13
    Found 2 MX records, which is within the recommended range (1-5).
  • ✓ No localhost targets #14
    No MX records pointing to localhost found.
  • ✓ No private IP addresses #15
    No MX records resolving to private IP addresses found.
  • ✓ No CNAME targets #22
    No MX records point to a CNAME.
  • ✓ Reverse DNS confirmed #30
    All 4 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 2 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
de-smtp-inbound-1.mimecast.comnone-
de-smtp-inbound-2.mimecast.comnone-

Checks

  • !
    Not configured
    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.
    #32
  • i
    Not configured
    TLS-RPT lets senders report TLS delivery problems to you. It is most useful together with MTA-STS or DANE.
    #35
  • i
    Not used
    No MX host publishes TLSA records. DANE lets senders verify your mail server's certificate through DNSSEC; it requires DNSSEC on the MX host's zone.
    #36

BIMI

info

No BIMI record

Checks

  • i
    Not configured
    BIMI shows your logo next to your mail in supporting mail clients. It requires DMARC enforcement.
    #38