Mail domain report: muenchen.de

SPF

pass

SPF record published

Found

Record: v=spf1 mx -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

fail

p=none (_dmarc.muenchen.de)

Found

Record: v=DMARC1;p=none;fo=1;ri=3600;rua=mailto:itm.dmarc-reports@muenchen.de;ruf=mailto:itm.dmarc-reports@muenchen.de
Found at: _dmarc.muenchen.de

Tag	Value	Meaning
v	DMARC1	Version
p	none	Policy
rua	mailto:itm.dmarc-reports@muenchen.de	Aggregate report addresses
ruf	mailto:itm.dmarc-reports@muenchen.de	Failure report addresses
fo	1	Failure reporting options
ri	3600	Report interval (seconds)

Checks

✗

Policy: none (monitoring only)

DMARC policy is set to 'none', which only monitors but doesn't protect against spoofing. Consider upgrading to 'quarantine' or ideally 'reject'.

#4
✓ Record published #5

DMARC record exists for this domain.
✓ Valid syntax #17

DMARC record syntax is valid.
✓ Aggregate reports enabled #19

Aggregate reports are sent to: mailto:itm.dmarc-reports@muenchen.de
✓ Report addresses in own domain #29

All report addresses are in your own organizational domain.

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

8 mail servers

Found

Priority	Host	Records	Reverse DNS
10	c118-apb20-rz.muenchen.de	A 194.246.151.236 AAAA 2a00:1830:a001:f004::236	c118-apb20-rz.muenchen.de ✓ c118-apb20-rz.muenchen.de ✓
10	c118-k30-rz.muenchen.de	A 194.246.151.238 AAAA 2a00:1830:a001:f004::238	c118-k30-rz.muenchen.de ✓ c118-k30-rz.muenchen.de ✓
10	c119-apb20-rz.muenchen.de	A 194.246.151.237 AAAA 2a00:1830:a001:f004::237	c119-apb20-rz.muenchen.de ✓ c119-apb20-rz.muenchen.de ✓
10	c119-k30-rz.muenchen.de	A 194.246.151.239 AAAA 2a00:1830:a001:f004::239	c119-k30-rz.muenchen.de ✓ c119-k30-rz.muenchen.de ✓
10	esavvfp101.muenchen.de	A 194.246.154.6 AAAA 2a02:102e:f:1::6	esavvfp101.muenchen.de ✓ esavvfp101.muenchen.de ✓
10	esavvfp102.muenchen.de	A 194.246.154.7 AAAA 2a02:102e:f:1::7	esavvfp102.muenchen.de ✓ esavvfp102.muenchen.de ✓
10	esavvfp103.muenchen.de	A 194.246.154.8 AAAA 2a02:102e:f:1::8	esavvfp103.muenchen.de ✓ esavvfp103.muenchen.de ✓
10	esavvfp104.muenchen.de	A 194.246.154.9 AAAA 2a02:102e:f:1::9	esavvfp104.muenchen.de ✓ esavvfp104.muenchen.de ✓

Checks

✓ 8 MX records #9

Found 8 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 8 MX records, which provides redundancy for email delivery.
!

More than 5 MX records

Found 8 MX records, which is more than the recommended maximum of 5. Too many MX records may indicate a misconfiguration.

#13
✓ 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 16 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 8 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
c118-apb20-rz.muenchen.de	none	-
c118-k30-rz.muenchen.de	none	-
c119-apb20-rz.muenchen.de	none	-
c119-k30-rz.muenchen.de	none	-
esavvfp101.muenchen.de	none	-
esavvfp102.muenchen.de	none	-
esavvfp103.muenchen.de	none	-
esavvfp104.muenchen.de	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

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