isover.fr

Checked 22 October 2026, 03:33 UTC · via 8.8.8.8
✗Problems found
17 passed 7 warnings 1 failed 3 info

SPF

warn

SPF record published

Found

Record
v=spf1 include:_spf.acquia.com ~all
DNS lookups
1 of 10
Void lookups
1 of 2
Problem
include:_spf.acquia.com does not exist or has no records

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • !
    1 of 10 DNS lookups, with problems
    SPF record needs 1 DNS lookups (limit is 10). Problems found: include:_spf.acquia.com does not exist or has no records.
    #2
  • ✓ 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.
  • !
    1 void lookup
    1 include/redirect target does not exist or has no records (limit is 2). This usually is a stale include; remove it.
    #26
  • ✓ No overly broad IP ranges #27
    All ip4/ip6 ranges are narrow enough.

DMARC

fail

p=none (_dmarc.isover.fr)

Found

Record
v=DMARC1; p=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
Found at
_dmarc.isover.fr
External report address
mailto:dmarc_rua@emaildefense.proofpoint.com (authorized)
External report address
mailto:dmarc_ruf@emaildefense.proofpoint.com (authorized)
TagValueMeaning
vDMARC1Version
pnonePolicy
ruamailto:dmarc_rua@emaildefense.proofpoint.comAggregate report addresses
rufmailto:dmarc_ruf@emaildefense.proofpoint.comFailure report addresses
fo1Failure reporting options

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_rua@emaildefense.proofpoint.com
  • ✓ 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

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

10 mail servers

Found

PriorityHostRecordsReverse DNS
5mail10.saint-gobain.comA 185.183.31.92mx08-002c9e02.pphosted.com ✓
5mail3.saint-gobain.comA 205.220.184.235mx07-002c9e02.pphosted.com ✓
5mail4.saint-gobain.comA 185.183.31.92mx08-002c9e02.pphosted.com ✓
5mail5.saint-gobain.comA 205.220.184.235mx07-002c9e02.pphosted.com ✓
5mail6.saint-gobain.comA 185.183.31.92mx08-002c9e02.pphosted.com ✓
5mail7.saint-gobain.comA 205.220.184.235mx07-002c9e02.pphosted.com ✓
5mail8.saint-gobain.comA 185.183.31.92mx08-002c9e02.pphosted.com ✓
5mail9.saint-gobain.comA 205.220.184.235mx07-002c9e02.pphosted.com ✓
10mail.saint-gobain.comA 205.220.184.235mx07-002c9e02.pphosted.com ✓
10mail2.saint-gobain.comA 185.183.31.92mx08-002c9e02.pphosted.com ✓

Checks

  • ✓ 10 MX records #9
    Found 10 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: mail10.saint-gobain.com, mail3.saint-gobain.com, mail4.saint-gobain.com, mail5.saint-gobain.com, mail6.saint-gobain.com, mail7.saint-gobain.com, mail8.saint-gobain.com, mail9.saint-gobain.com, mail.saint-gobain.com, mail2.saint-gobain.com
    #11
  • ✓ Redundant MX hosts #12
    Found 10 MX records, which provides redundancy for email delivery.
  • !
    More than 5 MX records
    Found 10 MX records, which is more than the recommended maximum of 5. Too many MX records may indicate a misconfiguration.
    #13
  • ✓ 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 10 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 10 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
mail10.saint-gobain.comnone-
mail3.saint-gobain.comnone-
mail4.saint-gobain.comnone-
mail5.saint-gobain.comnone-
mail6.saint-gobain.comnone-
mail7.saint-gobain.comnone-
mail8.saint-gobain.comnone-
mail9.saint-gobain.comnone-
mail.saint-gobain.comnone-
mail2.saint-gobain.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