Mail domain report: dreamlines.de

SPF

pass

SPF record published

Found

Record: v=spf1 include:spf.protection.outlook.com include:mailgun.org a a:mx01.rexx-systems.de include:servers.mcsv.net -all
DNS lookups: 9 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 9 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.dreamlines.de)

Found

Record: v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:cac3f468b788492bb5951047c6e5246d@dmarc-reports.cloudflare.net;ruf=mailto:domains@dreamlines.de;ri=86400;aspf=r;adkim=r;fo=1;
Found at: _dmarc.dreamlines.de
External report address: mailto:cac3f468b788492bb5951047c6e5246d@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:cac3f468b788492bb5951047c6e5246d@dmarc-reports.cloudflare.net	Aggregate report addresses
ruf	mailto:domains@dreamlines.de	Failure report addresses
adkim	r	DKIM alignment (r = relaxed, s = strict)
aspf	r	SPF alignment (r = relaxed, s = strict)
fo	1	Failure reporting options
ri	86400	Report interval (seconds)

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:cac3f468b788492bb5951047c6e5246d@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

warn

Selectors: k1, selector1, selector2, mx

Found

Selectors: k1, selector1, selector2, mx
_domainkey: NXDOMAIN

Selector	Key	Flags
k1	RSA 1024 bits
selector1	RSA 1024 bits
selector2	RSA 2048 bits
mx	RSA 1024 bits

Checks

✓ Keys found: k1, selector1, selector2, mx #7

DKIM keys found for this domain with selectors: k1, selector1, selector2, mx
!

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: k1 (1024 bits), selector1 (1024 bits), mx (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

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

1 mail server

Found

Priority	Host	Records	Reverse DNS
0	dreamlines-de.mail.protection.outlook.com	A 52.101.73.120 A 52.101.91.153 A 52.101.68.15 A 52.101.103.143 AAAA 2a01:111:f403:ca21::c AAAA 2a01:111:f403:ca48::8 AAAA 2a01:111:f403:ca3c::8 AAAA 2a01:111:f403:ca21::8	mail-am7pr02cu00300.inbound.protection.outlook.com ✓ mail-matpr04cu00101.inbound.protection.outlook.com ✓ mail-db6pr03cu00107.inbound.protection.outlook.com ✓ mail-miypr03cu00107.inbound.protection.outlook.com ✓ mail-matpr04cu00204.inbound.protection.outlook.com ✓ mail-miypr02cu00100.inbound.protection.outlook.com ✓ mail-zrxpr05cu00100.inbound.protection.outlook.com ✓ mail-matpr04cu00100.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

fail

MTA-STS record without policy · TLS-RPT · DANE on 0 of 1 MX hosts

Found

MTA-STS record: v=STSv1; id=171199644077Z;
Policy URL: https://mta-sts.dreamlines.de/.well-known/mta-sts.txt
Policy error: Get "https://mta-sts.dreamlines.de/.well-known/mta-sts.txt": dial tcp: lookup mta-sts.dreamlines.de on 127.0.0.53:53: no such host
TLS-RPT record: v=TLSRPTv1; rua=mailto:domains@dreamlines.com;

DANE (TLSA records)

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

Checks

✓ Record published #32

MTA-STS record found with id 171199644077Z.
✗

Policy not reachable

The MTA-STS record exists but the policy could not be fetched, so senders ignore MTA-STS: Get "https://mta-sts.dreamlines.de/.well-known/mta-sts.txt": dial tcp: lookup mta-sts.dreamlines.de on 127.0.0.53:53: no such host.

#33
✓ Reports enabled #35

TLS reports are sent to: mailto:domains@dreamlines.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

warn

https://website-production-public.dreamlines.de/mobile/cb65c6eadc/assets/images/dreamlines.de/logo.svg

Found

Record: v=BIMI1; l=https://website-production-public.dreamlines.de/mobile/cb65c6eadc/assets/images/dreamlines.de/logo.svg
Found at: default._bimi.dreamlines.de
Logo: https://website-production-public.dreamlines.de/mobile/cb65c6eadc/assets/images/dreamlines.de/logo.svg

Checks

!

No certificate (a=)

The logo is published without a Verified Mark Certificate. Gmail and Apple Mail only show BIMI logos with a VMC or CMC; Yahoo shows it without one.

#38
✓ DMARC meets BIMI requirements #39

DMARC is enforced on all mail, as BIMI requires.