zodiac.nl

Checked 22 October 2026, 17:30 UTC · via 8.8.8.8
!Passed with warnings
26 passed 4 warnings 0 failed 3 info

SPF

pass

SPF record published

Found

Record
v=spf1 ip4:87.233.145.101 ip4:37.0.92.201/29 include:sendgrid.net include:spf.routit.net ip4:198.37.154.7 a:mail2.zodiac.nl a:entoron.mailblast.nl ~all
DNS lookups
7 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 7 of 10 DNS lookups #2
    SPF record needs 7 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.zodiac.nl)

Found

Record
v=DMARC1; p=quarantine; rua=mailto:dmarc@zodiac.nl; aspf=r; adkim=r
Found at
_dmarc.zodiac.nl
TagValueMeaning
vDMARC1Version
pquarantinePolicy
ruamailto:dmarc@zodiac.nlAggregate report addresses
adkimrDKIM alignment (r = relaxed, s = strict)
aspfrSPF alignment (r = relaxed, s = strict)

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@zodiac.nl
  • ✓ Subdomain policy: quarantine #20
    Subdomains are covered by policy 'quarantine'.
  • ✓ Report addresses in own domain #29
    All report addresses are in your own organizational domain.

DKIM

warn

Selectors: s1, s2

Found

Selectors
s1, s2
_domainkey
NOERROR
SelectorKeyFlags
s1RSA 2048 bits
s2RSA 1024 bits

Checks

  • ✓ Keys found: s1, s2 #7
    DKIM keys found for this domain with selectors: s1, s2
  • !
    1024-bit DKIM key
    1024-bit RSA keys are the minimum and are considered weak today: s2 (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
33887, 33125
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
10smtp.routit.netA 89.146.30.27 A 89.146.30.17 A 89.146.30.26 A 89.146.30.2 A 89.146.30.19 A 89.146.30.25 A 89.146.30.28 A 89.146.30.10 A 89.146.30.29 A 89.146.30.18 A 89.146.30.1 A 89.146.30.30 A 89.146.30.9 A 89.146.30.20h06p01.smtp.routit.net ✓ h03p01.smtp.routit.net ✓ h04p02.smtp.routit.net ✓ smtp.routit.net ✓ h05p01.smtp.routit.net ✓ h04p01.smtp.routit.net ✓ h06p02.smtp.routit.net ✓ h02p02.smtp.routit.net ✓ h07p01.smtp.routit.net ✓ h03p02.smtp.routit.net ✓ h01p01.smtp.routit.net ✓ h07p02.smtp.routit.net ✓ h02p01.smtp.routit.net ✓ h05p02.smtp.routit.net ✓
20smtp1.routit.netA 89.146.30.25 A 89.146.30.30 A 89.146.30.26 A 89.146.30.20 A 89.146.30.9 A 89.146.30.27 A 89.146.30.28 A 89.146.30.19 A 89.146.30.17 A 89.146.30.1 A 89.146.30.29 A 89.146.30.18 A 89.146.30.10h04p01.smtp.routit.net ✓ h07p02.smtp.routit.net ✓ h04p02.smtp.routit.net ✓ h05p02.smtp.routit.net ✓ h02p01.smtp.routit.net ✓ h06p01.smtp.routit.net ✓ h06p02.smtp.routit.net ✓ h05p01.smtp.routit.net ✓ smtp.routit.net ✓ h01p01.smtp.routit.net ✓ h07p01.smtp.routit.net ✓ h03p02.smtp.routit.net ✓ h02p02.smtp.routit.net ✓

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: smtp.routit.net, smtp1.routit.net
    #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 27 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
smtp.routit.netnone-
smtp1.routit.netnone-

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