vsnu.nl

Checked 22 October 2026, 17:10 UTC · via 8.8.8.8
✗Problems found
8 passed 3 warnings 1 failed 2 info

SPF

fail

No SPF record found

Checks

  • ✗
    No SPF record
    No SPF record was found for this domain. SPF is important for preventing email spoofing. Add an SPF record to specify which servers are authorized to send email for your domain.
    #6

DMARC

warn

p=reject (_dmarc.vsnu.nl)

Found

Record
v=DMARC1; p=reject; rua=mailto:abusevsnu.nl; ruf=mailto:abuse@vsnu.nl; rf=iodef
Found at
_dmarc.vsnu.nl
External report address
mailto:abusevsnu.nl (only mailto: report addresses are supported by receivers)
TagValueMeaning
vDMARC1Version
prejectPolicy
ruamailto:abusevsnu.nlAggregate report addresses
rufmailto:abuse@vsnu.nlFailure report addresses
rfiodefFailure report format

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:abusevsnu.nl
  • ✓ Subdomain policy: reject #20
    Subdomains are covered by policy 'reject'.
  • !
    Unsupported report address
    Receivers only send reports to mailto: addresses: mailto:abusevsnu.nl.
    #29

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

pass

Signed, DS published at parent

Found

DNSKEY records
Yes (2)
DS at parent
Yes
Algorithms
ECDSAP256SHA256 (13)
Key tags
23202, 58346
Signatures valid until
5 November 2026, 01:20 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 2026-11-05T01:20:24Z.

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
    Not protected against spoofing
    The domain has no MX records. If it does not send mail, publish SPF "v=spf1 -all" so nobody can send mail as this domain.
    #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