wuestenrot.de

Checked 22 October 2026, 01:02 UTC · via 8.8.8.8
!Passed with warnings
28 passed 4 warnings 0 failed 1 info

SPF

pass

SPF record published

Found

Record
v=spf1 mx ip4:195.95.137.0/24 include:spf.protection.outlook.com include:_spf.tivian.com -all
DNS lookups
3 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 3 of 10 DNS lookups #2
    SPF record needs 3 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.wuestenrot.de)

Found

Record
v=DMARC1;p=reject;sp=reject;pct=100;fo=1;rua=mailto:dmarc_rua@ww-informatik.de;ruf=mailto:dmarc_ruf@ww-informatik.de
Found at
_dmarc.wuestenrot.de
External report address
mailto:dmarc_rua@ww-informatik.de (authorized)
External report address
mailto:dmarc_ruf@ww-informatik.de (authorized)
TagValueMeaning
vDMARC1Version
prejectPolicy
sprejectSubdomain policy
pct100Percentage of mail the policy applies to
ruamailto:dmarc_rua@ww-informatik.deAggregate report addresses
rufmailto:dmarc_ruf@ww-informatik.deFailure report addresses
fo1Failure 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:dmarc_rua@ww-informatik.de
  • ✓ 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

pass

Selectors: selector1

Found

Selectors
selector1
_domainkey
NOERROR
SelectorKeyFlags
selector1RSA 2048 bits

Checks

  • ✓ Keys found: selector1 #7
    DKIM keys found for this domain with selectors: selector1
  • ✓ Strong keys #23
    DKIM keys are strong enough: selector1: RSA 2048 bits.
  • ✓ 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

5 mail servers

Found

PriorityHostRecordsReverse DNS
10mail.ww-informatik.deA 195.95.137.251securemail-test.ww-ag.de (does not resolve back)
25mail1.ww-informatik.deA 195.95.137.252mail1.ww-informatik.de ✓
25mail2.ww-informatik.deA 195.95.137.253mail2.ww-informatik.de ✓
25mail5.ww-informatik.deA 195.95.137.254mail5.ww-informatik.de ✓
25mail6.ww-informatik.deA 195.95.137.183mail6.ww-informatik.de ✓

Checks

  • ✓ 5 MX records #9
    Found 5 MX records for this domain.
  • ✓ All hosts resolve #10
    All MX records resolve to valid IP addresses.
  • !
    Hosts without IPv6
    The following MX hosts could not be resolved to IPv6 addresses: mail.ww-informatik.de, mail1.ww-informatik.de, mail2.ww-informatik.de, mail5.ww-informatik.de, mail6.ww-informatik.de
    #11
  • ✓ 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 does not match
    The PTR name of these addresses does not resolve back to the same address: 195.95.137.251 -> securemail-test.ww-ag.de.
    #30

TLS

warn

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

Found

TLS-RPT record
v=TLSRPTv1;rua=mailto:tls-rpt@ww-informatik.de;

DANE (TLSA records)

MX hostTLSADNSSEC
mail.ww-informatik.denone-
mail1.ww-informatik.denone-
mail2.ww-informatik.denone-
mail5.ww-informatik.denone-
mail6.ww-informatik.denone-

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
  • ✓ Reports enabled #35
    TLS reports are sent to: mailto:tls-rpt@ww-informatik.de
  • 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

pass

https://portale.ww-ag.de/media/ext/dc/w___w_informatik_gmbh.svg

Found

Record
v=BIMI1;l=https://portale.ww-ag.de/media/ext/dc/w___w_informatik_gmbh.svg;a=https://portale.ww-ag.de/media/ext/dc/w___w_informatik_gmbh.pem
Found at
default._bimi.wuestenrot.de
Logo
https://portale.ww-ag.de/media/ext/dc/w___w_informatik_gmbh.svg
Certificate
https://portale.ww-ag.de/media/ext/dc/w___w_informatik_gmbh.pem

Checks

  • ✓ Logo and certificate published #38
    BIMI logo: https://portale.ww-ag.de/media/ext/dc/w___w_informatik_gmbh.svg; certificate: https://portale.ww-ag.de/media/ext/dc/w___w_informatik_gmbh.pem
  • ✓ DMARC meets BIMI requirements #39
    DMARC is enforced on all mail, as BIMI requires.