eerstekamer.nl

Checked 21 October 2026, 21:15 UTC · via 8.8.8.8
!Passed with warnings
26 passed 6 warnings 0 failed 1 info

SPF

warn

SPF record published

Found

Record
v=spf1 a ptr ip6:2a0a:9fc0:e::2 ip4:212.78.213.154 ip4:147.181.118.254 ip4:89.99.83.173 ip4:87.237.96.18 ip4:81.93.52.66 ip4:92.52.91.253/32 ip4:92.52.91.254/32 a:www.eerstekamer.nl a:redactie.eerstekamer.nl a:s10011-out.eerstekamer.nl a:s10013-out.eerstekamer.nl a:lv109366-web01-out.eerstekamer.nl include:spf.protection.outlook.com include:spf.tribecrm.nl -all
DNS lookups
10 of 10
Void lookups
0 of 2

Checks

  • !
    Uses deprecated ptr mechanism
    The ptr mechanism in SPF records is deprecated due to performance issues and should be avoided.
    #1
  • ✓ 10 of 10 DNS lookups #2
    SPF record needs 10 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=reject (_dmarc.eerstekamer.nl)

Found

Record
v=DMARC1; p=reject; ruf=mailto:dmarc@eerstekamer.nl; pct=100; fo=1;
Found at
_dmarc.eerstekamer.nl
TagValueMeaning
vDMARC1Version
prejectPolicy
pct100Percentage of mail the policy applies to
rufmailto:dmarc@eerstekamer.nlFailure report addresses
fo1Failure reporting options

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.
  • !
    No aggregate reports (rua)
    DMARC record has no rua tag, so you receive no aggregate reports about who sends mail as your domain. Add rua=mailto:...
    #19
  • ✓ Subdomain policy: reject #20
    Subdomains are covered by policy 'reject'.
  • ✓ Report addresses in own domain #29
    All report addresses are in your own organizational domain.

DKIM

warn

Selectors: selector2

Found

Selectors
selector2
_domainkey
NOERROR
SelectorKeyFlags
selector2RSA 1024 bits

Checks

  • ✓ Keys found: selector2 #7
    DKIM keys found for this domain with selectors: selector2
  • !
    1024-bit DKIM key
    1024-bit RSA keys are the minimum and are considered weak today: 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 (2)
DS at parent
Yes
Algorithms
ECDSAP256SHA256 (13)
Key tags
41014, 30401
Signatures valid until
29 October 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 2026-10-29 #21
    DNSKEY signatures are valid until 2026-10-29T00:00:00Z.

MX

warn

1 mail server

Found

PriorityHostRecordsReverse DNS
0eerstekamer-nl.y-v1.mx.microsoftA 52.101.103.39 A 52.101.73.153 A 52.101.91.159 A 52.101.68.39 AAAA 2a01:111:f403:c967::8 AAAA 2a01:111:f403:ca48::12 AAAA 2a01:111:f403:ca38::8 AAAA 2a01:111:f403:ca21::amail-miypr05cu00207.inbound.protection.outlook.com ✓ mail-as8pr05cu00401.inbound.protection.outlook.com ✓ mail-matpr04cu00207.inbound.protection.outlook.com ✓ mail-db7pr03cu00607.inbound.protection.outlook.com ✓ mail-cpjpr04cu00100.inbound.protection.outlook.com ✓ mail-miypr05cu00202.inbound.protection.outlook.com ✓ mail-wa4pr04cu00100.inbound.protection.outlook.com ✓ mail-maspr04cu00102.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

warn

no MTA-STS · no TLS-RPT · DANE on 1 of 1 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
eerstekamer-nl.y-v1.mx.microsoft3 1 1 54883cc5f1849331… 2 0 1 c1ad7778796d20bc… 3 1 1 cfd68bde4129c00a… 3 1 1 803f7447cc75b208… 2 0 1 ea7a25255d111fc3…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 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