Mail domain report: schiedam.nl

SPF

pass

SPF record published

Found

Record: v=spf1 mx ip4:194.26.120.5 ip4:46.17.9.132 include:_spf.zivver.com include:_spf.services.centric.eu include:spf.protection.outlook.com -all
DNS lookups: 4 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 4 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.schiedam.nl)

Found

Record: v=DMARC1; p=none; rua=mailto:dizixjkq@rua.eu.dmarcmanager.app; ruf=mailto:dizixjkq@ruf.eu.dmarcmanager.app
Found at: _dmarc.schiedam.nl
External report address: mailto:dizixjkq@rua.eu.dmarcmanager.app (authorized)
External report address: mailto:dizixjkq@ruf.eu.dmarcmanager.app (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	none	Policy
rua	mailto:dizixjkq@rua.eu.dmarcmanager.app	Aggregate report addresses
ruf	mailto:dizixjkq@ruf.eu.dmarcmanager.app	Failure 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:dizixjkq@rua.eu.dmarcmanager.app
✓ 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

warn

Signed, DS published at parent

Found

DNSKEY records: Yes (3)
DS at parent: Yes
Algorithms: RSASHA256 (8)
Key tags: 21156, 38326, 25369
Signatures valid until: 26 October 2026, 12:40 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 93h0m0s

DNSKEY signatures expire at 2026-10-26T12:40:00Z (in 93h0m0s). Check that re-signing works.

#21

MX

warn

2 mail servers

Found

Priority	Host	Records	Reverse DNS
10	mail.rbdnet.nl	A 194.26.120.5	mail.rbdnet.nl ✓
20	fallback.server01.slaveserver.net	A 46.17.9.4 AAAA 2a02:2870:1:100:46:17:9:4	fallback.server01.slaveserver.net ✓ fallback.server01.slaveserver.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: mail.rbdnet.nl

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

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 1 of 2 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
mail.rbdnet.nl	3 1 1 f14ac67c42288d80…	Yes
fallback.server01.slaveserver.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
!

Not configured

MTA-STS or DANE is used without TLS-RPT, so you get no reports when senders fail to deliver because of TLS problems. Publish _smtp._tls TXT "v=TLSRPTv1; rua=mailto:...".

#35
!

Not all MX hosts use DANE

These MX hosts publish no TLSA records, so mail to them is not protected by DANE: fallback.server01.slaveserver.net.

#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