Mail domain report: rockhard.de

SPF

pass

SPF record published

Found

Record: v=spf1 ip4:80.153.147.235 ip4:37.24.35.158 ip4:87.230.61.193 ip4:152.89.104.132 ip4:87.139.24.139 include:servers.mcsv.net include:spf.protection.outlook.com ~all
DNS lookups: 2 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 2 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.rockhard.de)

Found

Record: v=DMARC1; p=reject; sp=reject; pct=100; adkim=r; aspf=s; rua=mailto:3a746b20@in.mailhardener.com,mailto:postmaster@rockhard.de;ruf=mailto:3a746b20@in.mailhardener.com,mailto:postmaster@rockhard.de
Found at: _dmarc.rockhard.de
External report address: mailto:3a746b20@in.mailhardener.com (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:3a746b20@in.mailhardener.com,mailto:postmaster@rockhard.de	Aggregate report addresses
ruf	mailto:3a746b20@in.mailhardener.com,mailto:postmaster@rockhard.de	Failure report addresses
adkim	r	DKIM alignment (r = relaxed, s = strict)
aspf	s	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:3a746b20@in.mailhardener.com, mailto:postmaster@rockhard.de
✓ 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

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

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

2 mail servers

Found

Priority	Host	Records	Reverse DNS
10	mail.rockhard.de	A 87.139.24.139	mail.capricomp.de ✓
20	mail2.rockhard.de	A 87.139.24.139	mail.capricomp.de ✓

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.rockhard.de, mail2.rockhard.de

#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

fail

MTA-STS record without policy · TLS-RPT · DANE on 0 of 2 MX hosts

Found

MTA-STS record: v=STSv1; id=2023122400;
Policy URL: https://mta-sts.rockhard.de/.well-known/mta-sts.txt
Policy error: https://mta-sts.rockhard.de/.well-known/mta-sts.txt returned HTTP 404
TLS-RPT record: v=TLSRPTv1; rua=mailto:3a746b20@in.mailhardener.com,mailto:postmaster@rockhard.de

DANE (TLSA records)

MX host	TLSA	DNSSEC
mail.rockhard.de	none	-
mail2.rockhard.de	none	-

Checks

✓ Record published #32

MTA-STS record found with id 2023122400.
✗

Policy not reachable

The MTA-STS record exists but the policy could not be fetched, so senders ignore MTA-STS: https://mta-sts.rockhard.de/.well-known/mta-sts.txt returned HTTP 404.

#33
✓ Reports enabled #35

TLS reports are sent to: mailto:3a746b20@in.mailhardener.com, mailto:postmaster@rockhard.de
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