Mail domain report: hollandcasino.nl

SPF

pass

SPF record published

Found

Record: v=spf1 include:spf.sosafe.de include:spf.crowdtech.com include:_spf.salesforce.com include:spf.protection.outlook.com include:amazonses.com include:mail.zendesk.com ~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

pass

p=reject (_dmarc.hollandcasino.nl)

Found

Record: v=DMARC1; p=reject; pct=100; aspf=r; adkim=r; rua=mailto:dmarc+rua@hccloudmail.nl; ruf=mailto:dmarc+ruf@hccloudmail.nl;
Found at: _dmarc.hollandcasino.nl
External report address: mailto:dmarc+rua@hccloudmail.nl (authorized)
External report address: mailto:dmarc+ruf@hccloudmail.nl (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
pct	100	Percentage of mail the policy applies to
rua	mailto:dmarc+rua@hccloudmail.nl	Aggregate report addresses
ruf	mailto:dmarc+ruf@hccloudmail.nl	Failure report addresses
adkim	r	DKIM alignment (r = relaxed, s = strict)
aspf	r	SPF alignment (r = relaxed, s = strict)

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:dmarc+rua@hccloudmail.nl
✓ 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

Selectors: selector1, s1, s2

Found

Selectors: selector1, s1, s2
_domainkey: NOERROR

Selector	Key	Flags
selector1	RSA 1024 bits
s1	RSA 2048 bits
s2	RSA 2048 bits

Checks

✓ Keys found: selector1, s1, s2 #7

DKIM keys found for this domain with selectors: selector1, s1, s2
!

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: selector1 (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

warn

Signed, DS published at parent

Found

DNSKEY records: Yes (3)
DS at parent: Yes
Algorithms: ECDSAP256SHA256 (13)
Key tags: 47014, 16463, 40989
Signatures valid until: 22 October 2026, 02:00 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 expire in 5h0m0s

DNSKEY signatures expire at 2026-10-22T02:00:00Z (in 5h0m0s). Check that re-signing works.

#21

MX

warn

1 mail server

Found

Priority	Host	Records	Reverse DNS
10	hollandcasino.in.tmes.trendmicro.eu	A 18.185.115.146 A 18.185.115.147 A 18.185.115.145	in.tmes.trendmicro.eu ✓ in.tmes.trendmicro.eu ✓ in.tmes.trendmicro.eu ✓

Checks

✓ 1 MX record #9

Found 1 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: hollandcasino.in.tmes.trendmicro.eu

#11
!

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 3 MX addresss have a PTR record that resolves back to them.

TLS

info

MTA-STS enforce · TLS-RPT · DANE on 0 of 1 MX hosts

Found

MTA-STS record: v=STSv1; id=20260709
Policy URL: https://mta-sts.hollandcasino.nl/.well-known/mta-sts.txt
Mode: enforce
Allowed MX: hollandcasino.in.tmes.trendmicro.eu, inbound-smtp.eu-west-1.amazonaws.com
Max age: 86400 seconds
TLS-RPT record: v=TLSRPTv1; rua=mailto:dmarc+mta-sts@hccloudmail.nl

DANE (TLSA records)

MX host	TLSA	DNSSEC
hollandcasino.in.tmes.trendmicro.eu	none	-

Checks

✓ Record published #32

MTA-STS record found with id 20260709.
✓ Policy enforced #33

The MTA-STS policy is enforced and cached for 24h0m0s.
✓ All MX hosts covered #34

Every MX host matches an mx: line of the MTA-STS policy.
✓ Reports enabled #35

TLS reports are sent to: mailto:dmarc+mta-sts@hccloudmail.nl
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