Mail domain report: triangle-factory.be

SPF

pass

SPF record published

Found

Record: v=spf1 include:_custspf.one.com include:_spf.google.com include:mailgun.org ~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.triangle-factory.be)

Found

Record: v=DMARC1;p=none ;pct=100;rua=mailto:dmarc@triangle-factory.be;ruf=mailto:dmarc@triangle-factory.be;rua=mailto:rua@dmarc.brevo.com;ri=86400;aspf=s;fo=1;
Found at: _dmarc.triangle-factory.be
External report address: mailto:rua@dmarc.brevo.com (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	none	Policy
pct	100	Percentage of mail the policy applies to
rua	mailto:rua@dmarc.brevo.com	Aggregate report addresses
ruf	mailto:dmarc@triangle-factory.be	Failure report addresses
aspf	s	SPF alignment (r = relaxed, s = strict)
fo	1	Failure reporting options
ri	86400	Report interval (seconds)

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:rua@dmarc.brevo.com
✓ External report addresses authorized #29

Report addresses in other domains have published their authorization.

DKIM

warn

Selectors: mta, s1, s2

Found

Selectors: mta, s1, s2
_domainkey: NOERROR

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

Checks

✓ Keys found: mta, s1, s2 #7

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

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: mta (1024 bits), s2 (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

pass

Signed, DS published at parent

Found

DNSKEY records: Yes (2)
DS at parent: Yes
Algorithms: ECDSAP256SHA256 (13)
Key tags: 11879, 65147
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

3 mail servers

Found

Priority	Host	Records	Reverse DNS
10	mx1.pub.mailpod8-cph3.one.com	A 185.164.14.102	mx1.pub.mailpod8-cph3.one.com ✓
10	mx2.pub.mailpod8-cph3.one.com	A 185.164.14.103	mx2.pub.mailpod8-cph3.one.com ✓
10	mx3.pub.mailpod8-cph3.one.com	A 185.164.14.104	mx3.pub.mailpod8-cph3.one.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.
!

Hosts without IPv6

The following MX hosts could not be resolved to IPv6 addresses: mx1.pub.mailpod8-cph3.one.com, mx2.pub.mailpod8-cph3.one.com, mx3.pub.mailpod8-cph3.one.com

#11
✓ 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.
✓ 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 3 of 3 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
mx1.pub.mailpod8-cph3.one.com	3 1 1 e7531ab55e193541…	Yes
mx2.pub.mailpod8-cph3.one.com	3 1 1 e7531ab55e193541…	Yes
mx3.pub.mailpod8-cph3.one.com	3 1 1 e7531ab55e193541…	Yes

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
✓ DANE on all MX hosts #36

All 3 MX hosts publish DNSSEC-validated TLSA records.

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