Mail domain report: connexxion.nl

SPF

pass

SPF record published

Found

Record: v=spf1 include:spf.anachron.com include:_spf.emply.com include:mailcontrol.com include:spf.protection.outlook.com include:_spf.argewebhosting.nl include:spf1.connexxion.nl include:spf2.connexxion.nl -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.connexxion.nl)

Found

Record: v=DMARC1; p=reject; fo=1; adkim=s; aspf=s; rua=mailto:transdev.rua@emailsecurity.merox.io, mailto:c77fa1de0287868@rep.dmarcanalyzer.com; ruf=mailto:transdev.ruf@emailsecurity.merox.io, mailto:c77fa1de0287868@for.dmarcanalyzer.com
Found at: _dmarc.connexxion.nl
External report address: mailto:transdev.rua@emailsecurity.merox.io (authorized)
External report address: mailto:c77fa1de0287868@rep.dmarcanalyzer.com (authorized)
External report address: mailto:transdev.ruf@emailsecurity.merox.io (authorized)
External report address: mailto:c77fa1de0287868@for.dmarcanalyzer.com (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
rua	mailto:transdev.rua@emailsecurity.merox.io, mailto:c77fa1de0287868@rep.dmarcanalyzer.com	Aggregate report addresses
ruf	mailto:transdev.ruf@emailsecurity.merox.io, mailto:c77fa1de0287868@for.dmarcanalyzer.com	Failure report addresses
adkim	s	DKIM alignment (r = relaxed, s = strict)
aspf	s	SPF alignment (r = relaxed, s = strict)
fo	1	Failure reporting options

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:transdev.rua@emailsecurity.merox.io, mailto:c77fa1de0287868@rep.dmarcanalyzer.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: selector1, selector2

Found

Selectors: selector1, selector2
_domainkey: NOERROR

Selector	Key	Flags
selector1	RSA 2048 bits
selector2	RSA 2048 bits

Checks

✓ Keys found: selector1, selector2 #7

DKIM keys found for this domain with selectors: selector1, selector2
✓ Strong keys #23

DKIM keys are strong enough: selector1: RSA 2048 bits; selector2: 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 (2)
DS at parent: Yes
Algorithms: ECDSAP256SHA256 (13)
Key tags: 34505, 2371
Signatures valid until: 18 December 2026, 13:51 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 2026-12-18 #21

DNSKEY signatures are valid until 2026-12-18T13:51:58Z.

MX

warn

2 mail servers

Found

Priority	Host	Records	Reverse DNS
10	cust66010-1.in.mailcontrol.com	A 85.115.52.190	cluster-a.mailcontrol.com ✓
10	cust66010-2.in.mailcontrol.com	A 85.115.60.190	cluster-d.mailcontrol.com ✓

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: cust66010-1.in.mailcontrol.com, cust66010-2.in.mailcontrol.com

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

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 2 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
cust66010-1.in.mailcontrol.com	none	-
cust66010-2.in.mailcontrol.com	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