Mail domain report: onsoranje.nl

SPF

pass

SPF record published

Found

Record: v=spf1 a:3169.submission.antispamcloud.com mx ip4:31.134.203.164 ip4:31.134.203.165 ip4:31.134.203.166 ip4:46.31.48.0/21 ip4:94.228.128.0/20 ip4:178.22.80.0/22 ip6:2a00:d00:ff:133::/64 ip6:2a00:d00:ff:129::/64 ip6:2a00:d01:ff:905::/64 ip6:2001:610:188:140::/64 ip4:167.89.0.0/17 ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 ip4:159.183.0.0/16 ip4:223.165.113.0/24 ip4:223.165.115.0/24 ip4:223.165.118.0/23 ip4:223.165.120.0/23 ip4:83.98.176.0/24 ip4:83.98.168.240/28 ip4:82.94.175.64/26 ip4:149.210.146.83 ip4:149.210.146.85 ip4:149.210.144.235 ip4:149.210.144.182 ip4:178.63.60.209 ip4:83.98.176.152/30 include:sas.mail.e.sparkpost.com include:_netblocks.google.com include:_netblocks2.google.com include:_netblocks3.google.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

fail

p=none (_dmarc.onsoranje.nl)

Found

Record: v=DMARC1; p=none; rua=mailto:lo4vm8wk@ag.eu.dmarcadvisor.com
Found at: _dmarc.onsoranje.nl
External report address: mailto:lo4vm8wk@ag.eu.dmarcadvisor.com (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	none	Policy
rua	mailto:lo4vm8wk@ag.eu.dmarcadvisor.com	Aggregate report addresses

Checks

✗

Policy: none (monitoring only)

DMARC policy is set to 'none', which only monitors but doesn't protect against spoofing. Consider upgrading to 'quarantine' or ideally 'reject'.

#4
✓ Record published #5

DMARC record exists for this domain.
✓ Valid syntax #17

DMARC record syntax is valid.
✓ Aggregate reports enabled #19

Aggregate reports are sent to: mailto:lo4vm8wk@ag.eu.dmarcadvisor.com
✓ 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: RSASHA256 (8)
Key tags: 34990
Signatures valid until: 29 October 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 2026-10-29 #21

DNSKEY signatures are valid until 2026-10-29T00:00:00Z.

MX

warn

3 mail servers

Found

Priority	Host	Records	Reverse DNS
10	mx.spamexperts.com	A 154.59.104.23 AAAA 2001:978:2:2c::137:100	fe2-r3-in.ams14.l.antispamcloud.com ✓ fe2-r3-in.ams14.l.antispamcloud.com ✓
20	fallbackmx.spamexperts.eu	A 154.59.193.124 A 149.13.75.27 A 154.59.104.23 AAAA 2001:978:2:2c::137:100 AAAA 2001:978:2:6::f:124 AAAA 2001:978:2:7::162:100	fe3-r3-in.du01.l.antispamcloud.com ✓ fe1-r3-in.fra02.l.antispamcloud.com ✓ fe2-r3-in.ams14.l.antispamcloud.com ✓ fe2-r3-in.ams14.l.antispamcloud.com ✓ fe3-r3-in.du01.l.antispamcloud.com ✓ fe1-r3-in.fra02.l.antispamcloud.com ✓
30	lastmx.spamexperts.net	A 149.13.75.27 A 38.89.254.156 A 38.71.16.244 A 154.59.104.23 AAAA 2001:550:2:3::62:100 AAAA 2001:978:2:7::162:100 AAAA 2001:550:2:61::2fc:100 AAAA 2001:978:2:2c::137:100	fe1-r3-in.fra02.l.antispamcloud.com ✓ fe1-r2-in.ch03.l.antispamcloud.com ✓ fe2-r2-in.la10.l.antispamcloud.com ✓ fe2-r3-in.ams14.l.antispamcloud.com ✓ fe2-r2-in.la10.l.antispamcloud.com ✓ fe1-r3-in.fra02.l.antispamcloud.com ✓ no PTR fe2-r3-in.ams14.l.antispamcloud.com ✓

Checks

✓ 3 MX records #9

Found 3 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.
✓ 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.
!

Addresses without reverse DNS

These MX addresses have no PTR record, which many receivers treat as a spam signal: 2001:550:2:61::2fc:100 (lastmx.spamexperts.net). Ask your hosting provider to set one.

#30

TLS

warn

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

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
mx.spamexperts.com	none	-
fallbackmx.spamexperts.eu	none	-
lastmx.spamexperts.net	none	-

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