wolterskluwer.nl

Checked 22 October 2026, 17:20 UTC · via 8.8.8.8
!Passed with warnings
19 passed 2 warnings 0 failed 2 info

SPF

pass

SPF record published

Found

Record
v=spf1 include:spf.wolterskluwer.com ~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

warn

p=quarantine (_dmarc.wolterskluwer.nl)

Found

Record
v=DMARC1; p=quarantine; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:DMARC_RUA@wolterskluwer.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com,mailto:dmarc_ruf@wolterskluwer.com; pct=100; fo=1; ri=86400
Found at
_dmarc.wolterskluwer.nl
External report address
mailto:dmarc_rua@emaildefense.proofpoint.com (authorized)
External report address
mailto:DMARC_RUA@wolterskluwer.com (authorized)
External report address
mailto:dmarc_ruf@emaildefense.proofpoint.com (authorized)
External report address
mailto:dmarc_ruf@wolterskluwer.com (authorized)
TagValueMeaning
vDMARC1Version
pquarantinePolicy
pct100Percentage of mail the policy applies to
ruamailto:dmarc_rua@emaildefense.proofpoint.com,mailto:DMARC_RUA@wolterskluwer.comAggregate report addresses
rufmailto:dmarc_ruf@emaildefense.proofpoint.com,mailto:dmarc_ruf@wolterskluwer.comFailure report addresses
fo1Failure reporting options
ri86400Report interval (seconds)

Checks

  • !
    Policy: quarantine
    DMARC policy is set to 'quarantine'. Consider upgrading to 'reject' for stronger protection once you've verified legitimate emails are passing authentication.
    #4
  • ✓ 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:dmarc_rua@emaildefense.proofpoint.com, mailto:DMARC_RUA@wolterskluwer.com
  • ✓ Subdomain policy: quarantine #20
    Subdomains are covered by policy 'quarantine'.
  • ✓ External report addresses authorized #29
    Report addresses in other domains have published their authorization.

DKIM

pass

Selectors: s1, s2

Found

Selectors
s1, s2
_domainkey
NOERROR
SelectorKeyFlags
s1RSA 2048 bits
s2RSA 2048 bits

Checks

  • ✓ Keys found: s1, s2 #7
    DKIM keys found for this domain with selectors: s1, s2
  • ✓ Strong keys #23
    DKIM keys are strong enough: s1: RSA 2048 bits; s2: RSA 2048 bits.
  • ✓ 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 (2)
DS at parent
Yes
Algorithms
RSASHA256 (8)
Key tags
63864, 10435
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

No MX records found

Checks

  • !
    No MX records
    No MX records found. If this domain is used for email, add MX records to specify mail servers. If it never receives mail, publish a null MX ("MX 0 .").
    #9
  • i
    Receives no mail but sends
    The domain has no MX records but its SPF record authorizes senders. If it does not send mail either, use "v=spf1 -all" and DMARC p=reject.
    #28

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