Mail domain report: urlaubsguru.de

SPF

pass

SPF record published

Found

Record: v=spf1 mx ip4:84.246.127.35 ip4:91.204.45.102 ip4:152.89.106.13 include:spf.protection.outlook.com include:amazonses.com include:mynewsdesk-de.urlaubsguru.de include:_relay.amadeus.com include:spf.amadeus-leisure-it.com include:_spf.zimpel.de -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

pass

p=reject (_dmarc.urlaubsguru.de)

Found

Record: v=DMARC1;p=reject;rua=mailto:efc45d8d0c@rua.easydmarc.eu;ruf=mailto:efc45d8d0c@ruf.easydmarc.eu;fo=1;
Found at: _dmarc.urlaubsguru.de
External report address: mailto:efc45d8d0c@rua.easydmarc.eu (authorized)
External report address: mailto:efc45d8d0c@ruf.easydmarc.eu (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
rua	mailto:efc45d8d0c@rua.easydmarc.eu	Aggregate report addresses
ruf	mailto:efc45d8d0c@ruf.easydmarc.eu	Failure report addresses
fo	1	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:efc45d8d0c@rua.easydmarc.eu
✓ 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

Selectors: k1, selector1, s1, s2

Found

Selectors: k1, selector1, s1, s2
_domainkey: NOERROR

Selector	Key	Flags
k1	RSA 1024 bits
selector1	RSA 2048 bits
s1	RSA 2048 bits
s2	RSA 1024 bits

Checks

✓ Keys found: k1, selector1, s1, s2 #7

DKIM keys found for this domain with selectors: k1, selector1, s1, s2
!

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: k1 (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

warn

Signed, but no DS at parent

Found

DNSKEY records: Yes (3)
DS at parent: No
Algorithms: ECDSAP256SHA256 (13)
Key tags: 9751, 21437, 34119
Signatures valid until: 22 October 2026, 10:00 UTC

Checks

!

Signed, but no DS at parent

The zone is signed (DNSKEY present) but the parent has no DS record, so the chain of trust is incomplete. Publish the DS record at your registrar.

#8
!

Signatures expire in 9h0m0s

DNSKEY signatures expire at 2026-10-22T10:00:00Z (in 9h0m0s). Check that re-signing works.

#21

MX

warn

1 mail server

Found

Priority	Host	Records	Reverse DNS
0	urlaubsguru-de.mail.protection.outlook.com	A 52.101.209.28 A 52.101.103.162 A 52.101.68.39 A 52.101.181.153 AAAA 2a01:111:f403:ca04::4 AAAA 2a01:111:f403:ca09::24 AAAA 2a01:111:f403:ca04::a AAAA 2a01:111:f403:ca04::e	mail-cpjpr05cu00104.inbound.protection.outlook.com ✓ mail-miypr03cu00202.inbound.protection.outlook.com ✓ mail-db7pr03cu00607.inbound.protection.outlook.com ✓ mail-wa4pr04cu00101.inbound.protection.outlook.com ✓ mail-db4pr02cu00204.inbound.protection.outlook.com ✓ mail-am6pr02cu00204.inbound.protection.outlook.com ✓ mail-du0pr03cu00102.inbound.protection.outlook.com ✓ mail-db8pr02cu00106.inbound.protection.outlook.com ✓

Checks

✓ 1 MX record #9

Found 1 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.
!

Single MX host, no backup

Only one MX record found. For better email reliability, consider adding at least one backup MX server.

#12
✓ At most 5 MX records #13

Found 1 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 8 MX addresss have a PTR record that resolves back to them.

TLS

info

MTA-STS enforce · TLS-RPT · DANE on 0 of 1 MX hosts

Found

MTA-STS record: v=STSv1; id=20251203T080141;
Policy URL: https://mta-sts.urlaubsguru.de/.well-known/mta-sts.txt
Mode: enforce
Allowed MX: urlaubsguru-de.mail.protection.outlook.com
Max age: 604800 seconds
TLS-RPT record: v=TLSRPTv1; rua=mailto:efc45d8d0c@tls.easydmarc.com;

DANE (TLSA records)

MX host	TLSA	DNSSEC
urlaubsguru-de.mail.protection.outlook.com	none	-

Checks

✓ Record published #32

MTA-STS record found with id 20251203T080141.
✓ Policy enforced #33

The MTA-STS policy is enforced and cached for 168h0m0s.
✓ 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:efc45d8d0c@tls.easydmarc.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