Mail domain report: ekbo.de

SPF

pass

SPF record published

Found

Record: v=spf1 include:spf-de.emailsignatures365.com include:spf.protection.outlook.com include:spf.de.cancom-mase.com include:spf.topdesk.net include:spf.crsend.com include:spf.ekbo.de ~all
DNS lookups: 6 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 6 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

warn

p=quarantine (_dmarc.ekbo.de)

Found

Record: v=DMARC1; p=quarantine; rua=mailto:aggregate@ekbo.de; ruf=mailto:forensics@ekbo.de; rf=afrf; sp=none; fo=0:1:d:s; pct=100; ri=86400; adkim=r; aspf=r
Found at: _dmarc.ekbo.de

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
sp	none	Subdomain policy
pct	100	Percentage of mail the policy applies to
rua	mailto:aggregate@ekbo.de	Aggregate report addresses
ruf	mailto:forensics@ekbo.de	Failure report addresses
adkim	r	DKIM alignment (r = relaxed, s = strict)
aspf	r	SPF alignment (r = relaxed, s = strict)
fo	0:1:d:s	Failure reporting options
rf	afrf	Failure report format
ri	86400	Report interval (seconds)

Checks

!

Policy: quarantine

DMARC policy is set to 'quarantine'. Consider upgrading to 'reject' for stronger protection once you've verified legitimate emails are passing authentication.

#4
✓ 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:aggregate@ekbo.de
!

Subdomains unprotected (sp=none)

DMARC subdomain policy is sp=none, so spoofed mail from subdomains is not blocked. Consider sp=quarantine or sp=reject.

#20
✓ Report addresses in own domain #29

All report addresses are in your own organizational domain.

DKIM

pass

Selectors: selector1

Found

Selectors: selector1
_domainkey: NOERROR

Selector	Key	Flags
selector1	RSA 2048 bits

Checks

✓ Keys found: selector1 #7

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

DKIM keys are strong enough: selector1: 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: 64340, 17683
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

4 mail servers

Found

Priority	Host	Records	Reverse DNS
10	secure-mail01.de.cancom-mase.com	A 195.227.216.2 AAAA 2001:1440:0:4036::11	secure-mail01.de.cancom-mase.com ✓ no PTR
10	secure-mail02.de.cancom-mase.com	A 195.227.216.10 AAAA 2001:1440:0:4036::12	secure-mail02.de.cancom-mase.com ✓ no PTR
20	secure-mail03.de.cancom-mase.com	A 195.227.138.21 AAAA 2001:1440:0:4036::13	secure-mail03.de.cancom-mase.com ✓ no PTR
20	secure-mail04.de.cancom-mase.com	A 195.227.138.22 AAAA 2001:1440:0:4036::14	secure-mail04.de.cancom-mase.com ✓ no PTR

Checks

✓ 4 MX records #9

Found 4 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 4 MX records, which provides redundancy for email delivery.
✓ At most 5 MX records #13

Found 4 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: 2001:1440:0:4036::11 (secure-mail01.de.cancom-mase.com), 2001:1440:0:4036::12 (secure-mail02.de.cancom-mase.com), 2001:1440:0:4036::13 (secure-mail03.de.cancom-mase.com), 2001:1440:0:4036::14 (secure-mail04.de.cancom-mase.com). Ask your hosting provider to set one.

#30

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 4 of 4 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
secure-mail01.de.cancom-mase.com	3 0 1 c16eaaae0ba9d414…	Yes
secure-mail02.de.cancom-mase.com	3 0 1 c16eaaae0ba9d414…	Yes
secure-mail03.de.cancom-mase.com	3 0 1 c16eaaae0ba9d414…	Yes
secure-mail04.de.cancom-mase.com	3 0 1 c16eaaae0ba9d414…	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 4 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