Mail domain report: vanhelden.nl

SPF

pass

SPF record published

Found

Record: v=spf1 mx include:spf.protection.outlook.com include:spf.mandrillapp.com ip4:217.21.190.0/24 ip4:79.174.129.135 ip4:87.215.103.70 ip4:213.136.5.100 ip4:79.174.129.165 ip4:213.136.5.101 ip4:85.12.31.55 ip4:85.17.166.135 ip4:95.211.76.31 include:spf.EU.exclaimer.net include:sendgrid.net include:em.vanhelden.nl ip4:40.114.223.154 ip4:20.166.68.59 include:em5830.vanhelden.nl include:u57402223.wl224.sendgrid.net -all
DNS lookups: 9 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

No ptr mechanism found in SPF record.
✓ 9 of 10 DNS lookups #2

SPF record needs 9 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.vanhelden.nl)

Found

Record: v=DMARC1; p=reject; rua=mailto:pqmmhcsjld@rua.powerdmarc.com; ruf=mailto:pqmmhcsjld@ruf.powerdmarc.com; pct=100;
Found at: _dmarc.vanhelden.nl
External report address: mailto:pqmmhcsjld@rua.powerdmarc.com (authorized)
External report address: mailto:pqmmhcsjld@ruf.powerdmarc.com (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
pct	100	Percentage of mail the policy applies to
rua	mailto:pqmmhcsjld@rua.powerdmarc.com	Aggregate report addresses
ruf	mailto:pqmmhcsjld@ruf.powerdmarc.com	Failure 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:pqmmhcsjld@rua.powerdmarc.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

pass

Selectors: default, selector1, s1, s2

Found

Selectors: default, selector1, s1, s2
_domainkey: NOERROR

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

Checks

✓ Keys found: default, selector1, s1, s2 #7

DKIM keys found for this domain with selectors: default, selector1, s1, s2
✓ Strong keys #23

DKIM keys are strong enough: default: RSA 2048 bits; selector1: RSA 2048 bits; s1: RSA 2048 bits; s2: RSA 2048 bits.
✓ 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 (1)
DS at parent: Yes
Algorithms: ECDSAP256SHA256 (13)
Key tags: 17155
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

1 mail server

Found

Priority	Host	Records	Reverse DNS
0	vanhelden-nl.mail.protection.outlook.com	A 52.101.68.21 A 52.101.68.29 A 52.101.73.155 A 52.101.68.25 AAAA 2a01:111:f403:ca21::8 AAAA 2a01:111:f403:ca3c::8 AAAA 2a01:111:f403:ca48::12 AAAA 2a01:111:f403:ca04::f	mail-db4pr02cu00205.inbound.protection.outlook.com ✓ mail-dbapr03cu00105.inbound.protection.outlook.com ✓ mail-am7pr02cu00203.inbound.protection.outlook.com ✓ mail-db8pr02cu00101.inbound.protection.outlook.com ✓ mail-matpr04cu00100.inbound.protection.outlook.com ✓ mail-zrxpr05cu00100.inbound.protection.outlook.com ✓ mail-miypr05cu00202.inbound.protection.outlook.com ✓ mail-db7pr03cu00507.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

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

Found

MTA-STS record: v=STSv1; id=20260514124853208761;
Policy URL: https://mta-sts.vanhelden.nl/.well-known/mta-sts.txt
Mode: testing
Allowed MX: vanhelden-nl.mail.protection.outlook.com
Max age: 86400 seconds
TLS-RPT record: v=TLSRPTv1;rua=mailto:pqmmhcsjld@tls.powerdmarc.com

DANE (TLSA records)

MX host	TLSA	DNSSEC
vanhelden-nl.mail.protection.outlook.com	none	-

Checks

✓ Record published #32

MTA-STS record found with id 20260514124853208761.
!

Policy in testing mode

With mode: testing, senders only report TLS problems (via TLS-RPT) and still deliver without TLS. Switch to mode: enforce once reports are clean.

#33
✓ 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:pqmmhcsjld@tls.powerdmarc.com
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