Mail domain report: pcspezialist.de

SPF

pass

SPF record published

Found

Record: v=spf1 include:_spf.google.com ~all
DNS lookups: 1 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 1 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=reject (_dmarc.pcspezialist.de)

Found

Record: v=DMARC1; p=reject; pct=100; rua=mailto:re+kstqzkwg1lk@dmarc.postmarkapp.com,mailto:dmarc_agg@vali.email; ruf=mailto:stefan.beining+forensic-reports@synaxon.de; adkim=r; aspf=r; fo=0;
Found at: _dmarc.pcspezialist.de
External report address: mailto:re+kstqzkwg1lk@dmarc.postmarkapp.com (authorized)
External report address: mailto:dmarc_agg@vali.email (authorized)
External report address: mailto:stefan.beining+forensic-reports@synaxon.de (not authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
pct	100	Percentage of mail the policy applies to
rua	mailto:re+kstqzkwg1lk@dmarc.postmarkapp.com,mailto:dmarc_agg@vali.email	Aggregate report addresses
ruf	mailto:stefan.beining+forensic-reports@synaxon.de	Failure report addresses
adkim	r	DKIM alignment (r = relaxed, s = strict)
aspf	r	SPF alignment (r = relaxed, s = strict)
fo	0	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:re+kstqzkwg1lk@dmarc.postmarkapp.com, mailto:dmarc_agg@vali.email
✓ Subdomain policy: reject #20

Subdomains are covered by policy 'reject'.
!

Report address not authorized

These report addresses are in another domain that has not agreed to receive your reports, so receivers will not send them: mailto:stefan.beining+forensic-reports@synaxon.de (needs pcspezialist.de._report._dmarc.synaxon.de). Ask the report provider to publish the record, or check the address.

#29

DKIM

pass

Selectors: google

Found

Selectors: google
_domainkey: NOERROR

Selector	Key	Flags
google	RSA 2048 bits

Checks

✓ Keys found: google #7

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

DKIM keys are strong enough: google: 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: 60897, 40898
Signatures valid until: 19 November 2026, 07:11 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 2026-11-19 #21

DNSKEY signatures are valid until 2026-11-19T07:11:14Z.

MX

pass

5 mail servers

Found

Priority	Host	Records	Reverse DNS
1	aspmx.l.google.com	A 142.251.127.26 AAAA 2a00:1450:4001:c21::1a	lcfrai-in-f26.1e100.net ✓ lcfrai-in-f26.1e100.net ✓
5	alt1.aspmx.l.google.com	A 142.250.147.27 AAAA 2a00:1450:4025:c01::1a	rd-in-f27.1e100.net ✓ rd-in-f26.1e100.net ✓
5	alt2.aspmx.l.google.com	A 172.253.152.26 AAAA 2a00:1450:4010:c22::1a	yulpptr-in-f26.1e100.net ✓ yulpptr-in-f26.1e100.net ✓
10	alt3.aspmx.l.google.com	A 192.179.20.26 AAAA 2404:6800:4000:1027::1a	ncboms-in-f26.1e100.net ✓ ncboms-in-f26.1e100.net ✓
10	alt4.aspmx.l.google.com	A 192.178.158.26 AAAA 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net ✓ lcdels-in-f27.1e100.net ✓

Checks

✓ 5 MX records #9

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

Found 5 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 10 MX addresss have a PTR record that resolves back to them.

TLS

info

MTA-STS enforce · TLS-RPT · DANE on 0 of 5 MX hosts

Found

MTA-STS record: v=STSv1;id=202603121156;
Policy URL: https://mta-sts.pcspezialist.de/.well-known/mta-sts.txt
Mode: enforce
Allowed MX: alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com
Max age: 2592000 seconds
TLS-RPT record: v=TLSRPTv1;rua=mailto:admin+pcspezialist.de@synaxon.com;

DANE (TLSA records)

MX host	TLSA	DNSSEC
aspmx.l.google.com	none	-
alt1.aspmx.l.google.com	none	-
alt2.aspmx.l.google.com	none	-
alt3.aspmx.l.google.com	none	-
alt4.aspmx.l.google.com	none	-

Checks

✓ Record published #32

MTA-STS record found with id 202603121156.
✓ Policy enforced #33

The MTA-STS policy is enforced and cached for 720h0m0s.
✓ All MX hosts covered #34

Every MX host matches an mx: line of the MTA-STS policy.
✓ Reports enabled #35

TLS reports are sent to: mailto:admin+pcspezialist.de@synaxon.com
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