Mail domain report: adzuna.de

SPF

info

SPF record published

Found

Record: v=spf1 redirect=_spf.spf.adzuna.com
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).
i

Delegated via redirect

SPF record has no 'all' mechanism but redirects to _spf.spf.adzuna.com, whose policy applies.

#3
✓ 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.adzuna.de)

Found

Record: v=DMARC1; p=reject; sp=none; pct=100; adkim=s; aspf=r; fo=d; rf=afrf; ri=3600; rua=mailto:dmarc-reports@adzuna.de; ruf=mailto:dmarc-reports@adzuna.de;
Found at: _dmarc.adzuna.de

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
sp	none	Subdomain policy
pct	100	Percentage of mail the policy applies to
rua	mailto:dmarc-reports@adzuna.de	Aggregate report addresses
ruf	mailto:dmarc-reports@adzuna.de	Failure report addresses
adkim	s	DKIM alignment (r = relaxed, s = strict)
aspf	r	SPF alignment (r = relaxed, s = strict)
fo	d	Failure reporting options
rf	afrf	Failure report format
ri	3600	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:dmarc-reports@adzuna.de
!

Subdomains unprotected (sp=none)

DMARC subdomain policy is sp=none, so spoofed mail from subdomains is not blocked. Consider sp=quarantine or sp=reject.

#20
✓ Report addresses in own domain #29

All report addresses are in your own organizational domain.

DKIM

fail

No keys found under the checked selectors

Found

Selectors: None found
_domainkey: NXDOMAIN

Checks

✗

No DKIM keys published

_domainkey.adzuna.de does not exist (NXDOMAIN), so no DKIM keys are published. DKIM helps prevent email spoofing. Configure DKIM with your email service provider.

#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

pass

5 mail servers

Found

Priority	Host	Records	Reverse DNS
10	aspmx.l.google.com	A 142.251.127.26 AAAA 2a00:1450:4001:c21::1b	lcfrai-in-f26.1e100.net ✓ lcfrai-in-f27.1e100.net ✓
20	alt1.aspmx.l.google.com	A 142.250.147.27 AAAA 2a00:1450:4025:c01::1b	rd-in-f27.1e100.net ✓ rd-in-f27.1e100.net ✓
20	alt2.aspmx.l.google.com	A 172.253.152.27 AAAA 2a00:1450:4010:c22::1b	yulpptr-in-f27.1e100.net ✓ yulpptr-in-f27.1e100.net ✓
30	aspmx2.googlemail.com	A 142.250.147.26 AAAA 2a00:1450:4025:c01::1a	rd-in-f26.1e100.net ✓ rd-in-f26.1e100.net ✓
30	aspmx3.googlemail.com	A 172.253.152.26 AAAA 2a00:1450:4010:c22::1b	yulpptr-in-f26.1e100.net ✓ yulpptr-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

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 5 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
aspmx.l.google.com	none	-
alt1.aspmx.l.google.com	none	-
alt2.aspmx.l.google.com	none	-
aspmx2.googlemail.com	none	-
aspmx3.googlemail.com	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

fail

https://zunastatic-abf.kxcdn.com/images/emails/bimi/adzuna_ltd_1318171052.svg

Found

Record: v=BIMI1; l=https://zunastatic-abf.kxcdn.com/images/emails/bimi/adzuna_ltd_1318171052.svg; a=https://zunastatic-abf.kxcdn.com/images/emails/bimi/adzuna_ltd_1318171052.pem
Found at: default._bimi.adzuna.de
Logo: https://zunastatic-abf.kxcdn.com/images/emails/bimi/adzuna_ltd_1318171052.svg
Certificate: https://zunastatic-abf.kxcdn.com/images/emails/bimi/adzuna_ltd_1318171052.pem

Checks

✓ Logo and certificate published #38

BIMI logo: https://zunastatic-abf.kxcdn.com/images/emails/bimi/adzuna_ltd_1318171052.svg; certificate: https://zunastatic-abf.kxcdn.com/images/emails/bimi/adzuna_ltd_1318171052.pem
✗

DMARC not strict enough for BIMI

Mail clients will not show the logo. BIMI requires a subdomain policy other than sp=none.

#39