dgim.de

Checked 21 October 2026, 22:14 UTC · via 8.8.8.8
!Passed with warnings
24 passed 5 warnings 0 failed 3 info

SPF

pass

SPF record published

Found

Record
v=spf1 a mx ip4:176.28.32.229 ip4:212.227.17.0/24 ip4:212.227.126.0/24 ip4:217.72.192.73 ip4:217.72.192.75 ip6:2a01:111:f403:2611::/64 ip6:2a01:111:f403:2606::/64 ip6:2a01:111:f403:260e::/64 include:spf.protection.outlook.com include:spf.crsend.com include:_spf.google.com ~all
DNS lookups
5 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 5 of 10 DNS lookups #2
    SPF record needs 5 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

warn

p=quarantine (_dmarc.dgim.de)

Found

Record
v=DMARC1; p=quarantine; rua=mailto:0a917d92@mxtoolbox.dmarc-report.com; ruf=mailto:0a917d92@forensics.dmarc-report.com; rf=afrf; sp=quarantine; fo=1; pct=100
Found at
_dmarc.dgim.de
External report address
mailto:0a917d92@mxtoolbox.dmarc-report.com (authorized)
External report address
mailto:0a917d92@forensics.dmarc-report.com (authorized)
TagValueMeaning
vDMARC1Version
pquarantinePolicy
spquarantineSubdomain policy
pct100Percentage of mail the policy applies to
ruamailto:0a917d92@mxtoolbox.dmarc-report.comAggregate report addresses
rufmailto:0a917d92@forensics.dmarc-report.comFailure report addresses
fo1Failure reporting options
rfafrfFailure report format

Checks

  • !
    Policy: quarantine
    DMARC policy is set to 'quarantine'. Consider upgrading to 'reject' for stronger protection once you've verified legitimate emails are passing authentication.
    #4
  • ✓ 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:0a917d92@mxtoolbox.dmarc-report.com
  • ✓ Subdomain policy: quarantine #20
    Subdomains are covered by policy 'quarantine'.
  • ✓ External report addresses authorized #29
    Report addresses in other domains have published their authorization.

DKIM

warn

Selectors: selector2

Found

Selectors
selector2
_domainkey
NOERROR
SelectorKeyFlags
selector2RSA 1024 bits

Checks

  • ✓ Keys found: selector2 #7
    DKIM keys found for this domain with selectors: selector2
  • !
    1024-bit DKIM key
    1024-bit RSA keys are the minimum and are considered weak today: selector2 (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

3 mail servers

Found

PriorityHostRecordsReverse DNS
1dgim-de.mail.protection.outlook.comA 52.101.103.36 A 52.101.181.153 A 52.101.68.10 A 52.101.103.39 AAAA 2a01:111:f403:ca04::9 AAAA 2a01:111:f403:c967::a AAAA 2a01:111:f403:ca38::8 AAAA 2a01:111:f403:ca04::email-miypr05cu00104.inbound.protection.outlook.com ✓ mail-wa4pr04cu00101.inbound.protection.outlook.com ✓ mail-dbbpr03cu00102.inbound.protection.outlook.com ✓ mail-miypr05cu00207.inbound.protection.outlook.com ✓ mail-db7pr03cu00601.inbound.protection.outlook.com ✓ mail-cpjpr05cu00102.inbound.protection.outlook.com ✓ mail-wa4pr04cu00100.inbound.protection.outlook.com ✓ mail-db8pr02cu00106.inbound.protection.outlook.com ✓
11mx00.kundenserver.deA 212.227.15.171mx00.kundenserver.de ✓
12mx01.kundenserver.deA 212.227.15.188mx01.kundenserver.de ✓

Checks

  • ✓ 3 MX records #9
    Found 3 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: mx00.kundenserver.de, mx01.kundenserver.de
    #11
  • ✓ Redundant MX hosts #12
    Found 3 MX records, which provides redundancy for email delivery.
  • ✓ At most 5 MX records #13
    Found 3 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 3 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
dgim-de.mail.protection.outlook.comnone-
mx00.kundenserver.denone-
mx01.kundenserver.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
  • 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