voigt-travel.nl

Checked 22 October 2026, 17:10 UTC · via 8.8.8.8
!Passed with warnings
25 passed 5 warnings 0 failed 3 info

SPF

pass

SPF record published

Found

Record
v=spf1 include:spf.protection.outlook.com ip4:169.51.40.115/28 ip4:217.115.197.71/32 ip4:159.8.3.228/32 ip4:195.222.15.169/32 ip4:87.213.50.74/32 ip4:82.201.48.235/32 ip4:208.117.51.32/32 ip4:23.97.252.41/32 ip4:169.51.40.115/32 ip4:194.165.34.0/24 include:_spf.argewebhosting.nl include:5735510.spf05.hubspotemail.net ~all
DNS lookups
3 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 3 of 10 DNS lookups #2
    SPF record needs 3 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.voigt-travel.nl)

Found

Record
v=DMARC1; p=quarantine; rua=mailto:dmarc@voigt-travel.nl; ruf=mailto:dmarc@voigt-travel.nl; pct=75;
Found at
_dmarc.voigt-travel.nl
TagValueMeaning
vDMARC1Version
pquarantinePolicy
pct75Percentage of mail the policy applies to
ruamailto:dmarc@voigt-travel.nlAggregate report addresses
rufmailto:dmarc@voigt-travel.nlFailure report addresses

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 75% of mail
    DMARC policy only applies to 75% of failing mail (pct=75). Raise pct to 100 once you are confident in your setup.
    #18
  • ✓ Aggregate reports enabled #19
    Aggregate reports are sent to: mailto:dmarc@voigt-travel.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: selector2, s1, s2

Found

Selectors
selector2, s1, s2
_domainkey
NOERROR
SelectorKeyFlags
selector2RSA 1024 bits
s1RSA 2048 bits
s2RSA 2048 bits

Checks

  • ✓ Keys found: selector2, s1, s2 #7
    DKIM keys found for this domain with selectors: selector2, s1, s2
  • !
    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
RSASHA256 (8)
Key tags
53175, 42094
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

3 mail servers

Found

PriorityHostRecordsReverse DNS
10voigttravel-nl01c.mail.protection.outlook.comA 52.101.91.153 A 52.101.103.162 A 52.101.209.28 A 52.101.91.162 AAAA 2a01:111:f403:ca21::c AAAA 2a01:111:f403:ca21::8 AAAA 2a01:111:f403:ca04::f AAAA 2a01:111:f403:ca09::20mail-matpr04cu00101.inbound.protection.outlook.com ✓ mail-miypr03cu00202.inbound.protection.outlook.com ✓ mail-cpjpr05cu00104.inbound.protection.outlook.com ✓ mail-matpr04cu00302.inbound.protection.outlook.com ✓ mail-matpr04cu00204.inbound.protection.outlook.com ✓ mail-matpr04cu00100.inbound.protection.outlook.com ✓ mail-db7pr03cu00507.inbound.protection.outlook.com ✓ mail-as8pr05cu00400.inbound.protection.outlook.com ✓
20fallback1.mx.nxs.nlA 193.189.134.4fallback1.mx.nxs.nl ✓
30fallback2.mx.nxs.nlA 217.115.197.4fallback.werkonline.nu ✓

Checks

  • ✓ 3 MX records #9
    Found 3 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: fallback1.mx.nxs.nl, fallback2.mx.nxs.nl
    #11
  • ✓ Redundant MX hosts #12
    Found 3 MX records, which provides redundancy for email delivery.
  • ✓ At most 5 MX records #13
    Found 3 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 10 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 3 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
voigttravel-nl01c.mail.protection.outlook.comnone-
fallback1.mx.nxs.nlnone-
fallback2.mx.nxs.nlnone-

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