ville-dunkerque.fr

Checked 22 October 2026, 05:46 UTC · via 8.8.8.8
✗Problems found
22 passed 4 warnings 1 failed 3 info

SPF

pass

SPF record published

Found

Record
v=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com include:spf.tipimail.com include:hosteurtransac.net ip4:40.89.156.84 ip4:40.89.143.69 ip4:46.182.7.45 ip4:46.182.7.91 ip4:46.182.7.124 ip4:46.182.7.195 ip4:46.182.7.248 ip4:195.101.49.61 ip4:195.101.42.161 ip4:92.175.133.1 ip4:92.175.133.11 ip4:164.177.4.201 ip4:109.0.28.114 ip4:109.0.28.22 ip4:37.70.210.12 ip4:109.7.65.146 ip4:194.206.146.101 ip4:86.66.19.103 ip4:86.66.19.111 ip4:149.7.1.22 ip4:37.58.134.194 ip6:2a01:111:f400:7e18::701 -all
DNS lookups
4 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 4 of 10 DNS lookups #2
    SPF record needs 4 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

fail

p=none (_dmarc.ville-dunkerque.fr)

Found

Record
v=DMARC1;p=none;rua=mailto:dmarc@ville-dunkerque.fr;ruf=mailto:dmarc@ville-dunkerque.fr
Found at
_dmarc.ville-dunkerque.fr
TagValueMeaning
vDMARC1Version
pnonePolicy
ruamailto:dmarc@ville-dunkerque.frAggregate report addresses
rufmailto:dmarc@ville-dunkerque.frFailure report addresses

Checks

  • ✗
    Policy: none (monitoring only)
    DMARC policy is set to 'none', which only monitors but doesn't protect against spoofing. Consider upgrading to 'quarantine' or ideally 'reject'.
    #4
  • ✓ Record published #5
    DMARC record exists for this domain.
  • ✓ Valid syntax #17
    DMARC record syntax is valid.
  • ✓ Aggregate reports enabled #19
    Aggregate reports are sent to: mailto:dmarc@ville-dunkerque.fr
  • ✓ Report addresses in own domain #29
    All report addresses are in your own organizational domain.

DKIM

warn

Selectors: selector1, selector2, mta

Found

Selectors
selector1, selector2, mta
_domainkey
NOERROR
SelectorKeyFlags
selector1RSA 2048 bits
selector2RSA 2048 bits
mtaRSA 1024 bits

Checks

  • ✓ Keys found: selector1, selector2, mta #7
    DKIM keys found for this domain with selectors: selector1, selector2, mta
  • !
    1024-bit DKIM key
    1024-bit RSA keys are the minimum and are considered weak today: mta (1024 bits). Rotate to a 2048-bit key.
    #23
  • ✓ No problematic flags #24
    No keys in test mode, revoked, or limited to SHA-1.

DNSSEC

warn

Not signed

Found

DNSKEY records
No (0)
DS at parent
No

Checks

  • !
    Not enabled
    DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.
    #8

MX

warn

1 mail server

Found

PriorityHostRecordsReverse DNS
1villedunkerque-fr01c.mail.protection.outlook.comA 52.101.166.2 A 52.101.164.0 A 52.101.166.1 A 52.101.166.0 AAAA 2a01:111:f403:ca04::9 AAAA 2a01:111:f403:ca09::22 AAAA 2a01:111:f403:c967::a AAAA 2a01:111:f403:ca21::amail-paup264cu00202.inbound.protection.outlook.com ✓ mail-mrzp264cu00100.inbound.protection.outlook.com ✓ mail-pr0p264cu01301.inbound.protection.outlook.com ✓ mail-pa5p264cu00200.inbound.protection.outlook.com ✓ mail-db7pr03cu00601.inbound.protection.outlook.com ✓ mail-am7pr02cu00302.inbound.protection.outlook.com ✓ mail-cpjpr05cu00102.inbound.protection.outlook.com ✓ mail-maspr04cu00102.inbound.protection.outlook.com ✓

Checks

  • ✓ 1 MX record #9
    Found 1 MX records for this domain.
  • ✓ All hosts resolve #10
    All MX records resolve to valid IP addresses.
  • ✓ All hosts have IPv6 #11
    All MX records resolve to IPv6 addresses.
  • !
    Single MX host, no backup
    Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • ✓ At most 5 MX records #13
    Found 1 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 8 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 1 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
villedunkerque-fr01c.mail.protection.outlook.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