soprasteria.de

Checked 22 October 2026, 00:23 UTC · via 8.8.8.8
✗Problems found
19 passed 5 warnings 2 failed 3 info

SPF

fail

SPF record published

Found

Record
v=spf1 mx ip4:212.180.1.59/24 ip4:84.37.121.0/28 ip4:90.115.201.24/32 ip4:216.74.162.13/32 ip4:216.74.162.14/32 ip4:143.47.149.171 include:_spf.atoracle.com include:spf.protection.outlook.com include:_spf.prod.hydra.sophos.com -all
DNS lookups
8 of 10
Void lookups
0 of 2
Records published
2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 8 of 10 DNS lookups #2
    SPF record needs 8 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.
  • ✗
    Multiple SPF records
    Found 2 SPF records. Publishing more than one v=spf1 record causes a permerror; merge them into a single record.
    #16
  • ✓ 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.soprasteria.de)

Found

Record
v=DMARC1; p=reject; sp=reject; pct=100
Found at
_dmarc.soprasteria.de
TagValueMeaning
vDMARC1Version
prejectPolicy
sprejectSubdomain policy
pct100Percentage of mail the policy applies to

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.
  • !
    No aggregate reports (rua)
    DMARC record has no rua tag, so you receive no aggregate reports about who sends mail as your domain. Add rua=mailto:...
    #19
  • ✓ Subdomain policy: reject #20
    Subdomains are covered by policy 'reject'.

DKIM

fail

No keys found under the checked selectors

Found

Selectors
None found
_domainkey
NXDOMAIN

Checks

  • ✗
    No DKIM keys published
    _domainkey.soprasteria.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

warn

3 mail servers

Found

PriorityHostRecordsReverse DNS
0.(does not resolve)
10relay1.netnames.netA 185.26.230.83relay1.netnames.net ✓
20relay2.netnames.netA 185.26.230.89relay2.netnames.net ✓

Checks

  • ✓ 3 MX records #9
    Found 3 MX records for this domain.
  • !
    Hosts without IP addresses
    The following MX hosts could not be resolved to IP addresses: .
    #10
  • !
    Hosts without IPv6
    The following MX hosts could not be resolved to IPv6 addresses: ., relay1.netnames.net, relay2.netnames.net
    #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 2 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 2 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
relay1.netnames.netnone-
relay2.netnames.netnone-

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