luna.nl

Checked 22 October 2026, 14:20 UTC · via 8.8.8.8
!Passed with warnings
25 passed 3 warnings 0 failed 3 info

SPF

pass

SPF record published

Found

Record
v=spf1 include:email.luna.net a:webmail.luna.nl include:eu._netblocks.mimecast.com include:spf.protection.outlook.com ip4:217.77.134.16 ip4:217.77.157.242 ip4:217.77.134.30 ip4:5.39.185.33 -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.luna.nl)

Found

Record
v=DMARC1; p=reject; rua=mailto:8fmawhpo@ag.dmarcian-eu.com
Found at
_dmarc.luna.nl
External report address
mailto:8fmawhpo@ag.dmarcian-eu.com (authorized)
TagValueMeaning
vDMARC1Version
prejectPolicy
ruamailto:8fmawhpo@ag.dmarcian-eu.comAggregate 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:8fmawhpo@ag.dmarcian-eu.com
  • ✓ 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

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 (1)
DS at parent
Yes
Algorithms
ECDSAP256SHA256 (13)
Key tags
2301
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

2 mail servers

Found

PriorityHostRecordsReverse DNS
10eu-smtp-inbound-1.mimecast.comA 91.220.42.241 A 195.130.217.241 A 91.220.42.211 A 91.220.42.201 A 195.130.217.211 A 195.130.217.201eu-smtp-inbound-1.mimecast.com ✓ eu-smtp-inbound-2.mimecast.com ✓ eu-smtp-inbound-1.mimecast.com ✓ eu-smtp-inbound-1.mimecast.com ✓ eu-smtp-inbound-1.mimecast.com ✓ eu-smtp-inbound-2.mimecast.com ✓
10eu-smtp-inbound-2.mimecast.comA 195.130.217.241 A 91.220.42.241 A 91.220.42.211 A 195.130.217.211 A 195.130.217.201 A 91.220.42.201eu-smtp-inbound-2.mimecast.com ✓ eu-smtp-inbound-2.mimecast.com ✓ eu-smtp-inbound-2.mimecast.com ✓ eu-smtp-inbound-1.mimecast.com ✓ eu-smtp-inbound-2.mimecast.com ✓ eu-smtp-inbound-2.mimecast.com ✓

Checks

  • ✓ 2 MX records #9
    Found 2 MX records for this domain.
  • ✓ All hosts resolve #10
    All MX records resolve to valid IP addresses.
  • !
    Hosts without IPv6
    The following MX hosts could not be resolved to IPv6 addresses: eu-smtp-inbound-1.mimecast.com, eu-smtp-inbound-2.mimecast.com
    #11
  • ✓ 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 12 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 2 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
eu-smtp-inbound-1.mimecast.comnone-
eu-smtp-inbound-2.mimecast.comnone-

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
  • i
    Not configured
    TLS-RPT lets senders report TLS delivery problems to you. It is most useful together with MTA-STS or DANE.
    #35
  • i
    Not used
    No MX host publishes TLSA records. DANE lets senders verify your mail server's certificate through DNSSEC; it requires DNSSEC on the MX host's zone.
    #36

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