pa4tw.nl

Checked 22 October 2026, 15:10 UTC · via 8.8.8.8
✗Problems found
14 passed 4 warnings 2 failed 1 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

fail

p=none (_dmarc.pa4tw.nl)

Found

Record
v=DMARC1;p=none;ri=86400;fo=1;rua=mailto:dmarc-rua@zuijlen.eu;ruf=mailto:dmarc-ruf@zuijlen.eu
Found at
_dmarc.pa4tw.nl
External report address
mailto:dmarc-rua@zuijlen.eu (authorized)
External report address
mailto:dmarc-ruf@zuijlen.eu (authorized)
TagValueMeaning
vDMARC1Version
pnonePolicy
ruamailto:dmarc-rua@zuijlen.euAggregate report addresses
rufmailto:dmarc-ruf@zuijlen.euFailure report addresses
fo1Failure reporting options
ri86400Report interval (seconds)

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@zuijlen.eu
  • ✓ 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

pass

2 mail servers

Found

PriorityHostRecordsReverse DNS
10mail.zuijlen.euA 37.97.204.107 AAAA 2a01:7c8:aac3:427::1vps1.zuijlen.eu ✓ vps1.zuijlen.eu ✓
20relay.transip.nlA 149.210.149.29 A 149.210.149.12 AAAA 2a01:7c8:7c8::29 AAAA 2a01:7c8:7c8::12relay1.transip.nl ✓ relay0.transip.nl ✓ relay1.transip.nl ✓ relay0.transip.nl ✓

Checks

  • ✓ 2 MX records #9
    Found 2 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.
  • ✓ Redundant MX hosts #12
    Found 2 MX records, which provides redundancy for email delivery.
  • ✓ At most 5 MX records #13
    Found 2 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 6 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 2 of 2 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
mail.zuijlen.eu3 1 1 46cbd5bbe6041c18…Yes
relay.transip.nl3 1 1 80fd782020c5598d… 3 1 1 a83c48417a6006de… 3 1 1 4be19b4f9ff6b128… 3 1 1 1326b5674d6cbd3f…Yes

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
  • !
    Not configured
    MTA-STS or DANE is used without TLS-RPT, so you get no reports when senders fail to deliver because of TLS problems. Publish _smtp._tls TXT "v=TLSRPTv1; rua=mailto:...".
    #35
  • ✓ DANE on all MX hosts #36
    All 2 MX hosts 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