zonhoven.be

Checked 22 October 2026, 07:31 UTC · via 8.8.8.8
✗Problems found
21 passed 4 warnings 2 failed 3 info

SPF

fail

SPF record published

Found

Record
v=spf1 include:spf.ciport.be include:oclcspf3.oclc.org include:spf.protection.outlook.com include:spf.lcp.be include:spf.topdesk.net ip4:62.213.218.5 include:spf.facilitator.e2e.be include:mailgun.org -all
DNS lookups
11 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✗
    11 DNS lookups, over the limit of 10
    SPF record needs 11 DNS lookups (including nested includes), more than the limit of 10. Receivers will return a permerror; reduce includes or flatten the record.
    #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.
  • ✓ 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.zonhoven.be)

Found

Record
v=DMARC1;p=none;rua=mailto:rua@dmarc.brevo.com
Found at
_dmarc.zonhoven.be
External report address
mailto:rua@dmarc.brevo.com (authorized)
TagValueMeaning
vDMARC1Version
pnonePolicy
ruamailto:rua@dmarc.brevo.comAggregate 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:rua@dmarc.brevo.com
  • ✓ External report addresses authorized #29
    Report addresses in other domains have published their authorization.

DKIM

warn

Selectors: selector1, mta

Found

Selectors
selector1, mta
_domainkey
NOERROR
SelectorKeyFlags
selector1RSA 1024 bits
mtaRSA 1024 bits

Checks

  • ✓ Keys found: selector1, mta #7
    DKIM keys found for this domain with selectors: selector1, mta
  • !
    1024-bit DKIM key
    1024-bit RSA keys are the minimum and are considered weak today: selector1 (1024 bits), 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

3 mail servers

Found

PriorityHostRecordsReverse DNS
0zonhoven-be.mail.protection.outlook.comA 52.101.185.114 A 52.101.73.155 A 52.101.91.21 A 52.101.103.137 AAAA 2a01:111:f403:ca04::4 AAAA 2a01:111:f403:ca21::10 AAAA 2a01:111:f403:c967::8 AAAA 2a01:111:f403:ca38::amail-zrxpr04cu00102.inbound.protection.outlook.com ✓ mail-am7pr02cu00203.inbound.protection.outlook.com ✓ mail-matpr05cu00105.inbound.protection.outlook.com ✓ mail-miypr02cu00101.inbound.protection.outlook.com ✓ mail-db4pr02cu00204.inbound.protection.outlook.com ✓ mail-matpr05cu00100.inbound.protection.outlook.com ✓ mail-cpjpr04cu00100.inbound.protection.outlook.com ✓ mail-wa4pr05cu00102.inbound.protection.outlook.com ✓
10mxa.eu.mailgun.orgA 34.111.130.244244.130.111.34.bc.googleusercontent.com ✓
10mxb.eu.mailgun.orgA 34.111.130.244244.130.111.34.bc.googleusercontent.com ✓

Checks

  • ✓ 3 MX records #9
    Found 3 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: mxa.eu.mailgun.org, mxb.eu.mailgun.org
    #11
  • ✓ Redundant MX hosts #12
    Found 3 MX records, which provides redundancy for email delivery.
  • ✓ At most 5 MX records #13
    Found 3 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 10 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 3 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
zonhoven-be.mail.protection.outlook.comnone-
mxa.eu.mailgun.orgnone-
mxb.eu.mailgun.orgnone-

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