prinsesmaximacentrum.nl

Checked 22 October 2026, 15:21 UTC · via 8.8.8.8
!Passed with warnings
32 passed 2 warnings 0 failed 1 info

SPF

pass

SPF record published

Found

Record
v=spf1 ip4:80.84.235.70 ip4:143.121.241.18/31 ip4:143.121.241.20/30 ip4:104.130.122.76/32 ip4:89.221.190.15 ip4:185.136.64.128/27 ip4:185.136.65.128/27 ip6:2a01:111:f403:e20::/32 include:_spf.eu.messagegears.net include:spf.kpnwerkplek.com include:spf.protection.outlook.com include:spf.afas.online include:malengo.exception.mx include:_spf.zivver.com include:_spf.cobytes.email -all
DNS lookups
8 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 8 of 10 DNS lookups #2
    SPF record needs 8 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

pass

p=reject (_dmarc.prinsesmaximacentrum.nl)

Found

Record
v=DMARC1; p=reject; rua=mailto:security@prinsesmaximacentrum.nl,mailto:dmarc_agg@vali.email,mailto:beheerict@prinsesmaximacentrum.nl;
Found at
_dmarc.prinsesmaximacentrum.nl
External report address
mailto:dmarc_agg@vali.email (authorized)
TagValueMeaning
vDMARC1Version
prejectPolicy
ruamailto:security@prinsesmaximacentrum.nl,mailto:dmarc_agg@vali.email,mailto:beheerict@prinsesmaximacentrum.nlAggregate report addresses

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:security@prinsesmaximacentrum.nl, mailto:dmarc_agg@vali.email, mailto:beheerict@prinsesmaximacentrum.nl
  • ✓ Subdomain policy: reject #20
    Subdomains are covered by policy 'reject'.
  • ✓ External report addresses authorized #29
    Report addresses in other domains have published their authorization.

DKIM

warn

Selectors: selector1, selector2

Found

Selectors
selector1, selector2
_domainkey
NOERROR
SelectorKeyFlags
selector1RSA 1024 bits
selector2RSA 1024 bits

Checks

  • ✓ Keys found: selector1, selector2 #7
    DKIM keys found for this domain with selectors: selector1, selector2
  • !
    1024-bit DKIM key
    1024-bit RSA keys are the minimum and are considered weak today: selector1 (1024 bits), selector2 (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

pass

Signed, DS published at parent

Found

DNSKEY records
Yes (1)
DS at parent
Yes
Algorithms
ECDSAP256SHA256 (13)
Key tags
46516
Signatures valid until
5 November 2026, 00:00 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 2026-11-05 #21
    DNSKEY signatures are valid until 2026-11-05T00:00:00Z.

MX

warn

1 mail server

Found

PriorityHostRecordsReverse DNS
0prinsesmaximacentrum-nl.v-v1.mx.microsoftA 52.101.68.15 A 52.101.73.145 A 52.101.103.143 A 52.101.68.25 AAAA 2a01:111:f403:ca48::c AAAA 2a01:111:f403:ca09::20 AAAA 2a01:111:f403:ca21::e AAAA 2a01:111:f403:ca21::10mail-db6pr03cu00107.inbound.protection.outlook.com ✓ mail-am6pr02cu00301.inbound.protection.outlook.com ✓ mail-miypr03cu00107.inbound.protection.outlook.com ✓ mail-db8pr02cu00101.inbound.protection.outlook.com ✓ mail-miypr03cu00104.inbound.protection.outlook.com ✓ mail-as8pr05cu00400.inbound.protection.outlook.com ✓ mail-matpr04cu00306.inbound.protection.outlook.com ✓ mail-matpr05cu00100.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

pass

MTA-STS enforce · TLS-RPT · DANE on 1 of 1 MX hosts

Found

MTA-STS record
v=STSv1; id=202601271044
Policy URL
https://mta-sts.prinsesmaximacentrum.nl/.well-known/mta-sts.txt
Mode
enforce
Allowed MX
prinsesmaximacentrum-nl.v-v1.mx.microsoft
Max age
604800 seconds
TLS-RPT record
v=TLSRPTv1; rua=mailto:tls-report@vali.email

DANE (TLSA records)

MX hostTLSADNSSEC
prinsesmaximacentrum-nl.v-v1.mx.microsoft2 0 1 ea7a25255d111fc3… 3 1 1 cfd68bde4129c00a… 3 1 1 54883cc5f1849331… 3 1 1 803f7447cc75b208… 2 0 1 c1ad7778796d20bc…Yes

Checks

  • ✓ Record published #32
    MTA-STS record found with id 202601271044.
  • ✓ Policy enforced #33
    The MTA-STS policy is enforced and cached for 168h0m0s.
  • ✓ All MX hosts covered #34
    Every MX host matches an mx: line of the MTA-STS policy.
  • ✓ Reports enabled #35
    TLS reports are sent to: mailto:tls-report@vali.email
  • ✓ DANE on all MX hosts #36
    All 1 MX host publish DNSSEC-validated TLSA records.

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