Mail domain report: boker.de

SPF

pass

SPF record published

Found

Record: v=spf1 a mx ip4:89.107.189.103 ip4:89.107.190.174 ip4:185.39.220.206 ip4:213.23.27.174 ip4:89.107.184.0/21 ip4:185.18.92.0/22 ip4:176.28.21.205/32 ip4:88.130.210.250 ip4:132.147.16.0/24 ip4:185.39.220.207 ip4:217.66.11.82 ip4:185.138.223.6 include:spf.serverdomain.org -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

pass

p=reject (_dmarc.boker.de)

Found

Record: v=DMARC1; p=reject; sp=reject; rua=mailto:12d71f2cf45941ca8f163b9f9e608ba4@dmarc-reports.cloudflare.net; pct=100; adkim=r; aspf=r
Found at: _dmarc.boker.de
External report address: mailto:12d71f2cf45941ca8f163b9f9e608ba4@dmarc-reports.cloudflare.net (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
sp	reject	Subdomain policy
pct	100	Percentage of mail the policy applies to
rua	mailto:12d71f2cf45941ca8f163b9f9e608ba4@dmarc-reports.cloudflare.net	Aggregate report addresses
adkim	r	DKIM alignment (r = relaxed, s = strict)
aspf	r	SPF alignment (r = relaxed, s = strict)

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:12d71f2cf45941ca8f163b9f9e608ba4@dmarc-reports.cloudflare.net
✓ 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: default

Found

Selectors: default
_domainkey: NOERROR

Selector	Key	Flags
default	RSA 2048 bits

Checks

✓ Keys found: default #7

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

DKIM keys are strong enough: default: RSA 2048 bits.
✓ No problematic flags #24

No keys in test mode, revoked, or limited to SHA-1.

DNSSEC

warn

Not signed

Found

DNSKEY records: No (0)
DS at parent: No

Checks

!

Not enabled

DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.

#8

MX

warn

3 mail servers

Found

Priority	Host	Records	Reverse DNS
10	mail.boker.de	A 213.23.27.174	mail.boker.de ✓
50	_dc-mx.c83ad829fb62.boker.de	A 89.107.185.43	22006.whserv.de (does not resolve back)
70	www.shop.boker.de	A 185.39.220.206	cloud3-vm408.de-nserver.de ✓

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: mail.boker.de, _dc-mx.c83ad829fb62.boker.de, www.shop.boker.de

#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 does not match

The PTR name of these addresses does not resolve back to the same address: 89.107.185.43 -> 22006.whserv.de.

#30

TLS

warn

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

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
mail.boker.de	none	-
_dc-mx.c83ad829fb62.boker.de	none	-
www.shop.boker.de	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