sevenvm.de

Checked 22 October 2026, 00:10 UTC · via 8.8.8.8
✗Problems found
26 passed 4 warnings 1 failed 2 info

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

pass

p=reject (_dmarc.sevenvm.de)

Found

Record
v=DMARC1; p=reject; rua=mailto:postmaster@sevenvm.de
Found at
_dmarc.sevenvm.de
TagValueMeaning
vDMARC1Version
prejectPolicy
ruamailto:postmaster@sevenvm.deAggregate report addresses

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:postmaster@sevenvm.de
  • ✓ Subdomain policy: reject #20
    Subdomains are covered by policy 'reject'.
  • ✓ Report addresses in own domain #29
    All report addresses are in your own organizational domain.

DKIM

pass

Selectors: mail

Found

Selectors
mail
_domainkey
NOERROR
SelectorKeyFlags
mailRSA 2048 bitsh=sha256

Checks

  • ✓ Keys found: mail #7
    DKIM keys found for this domain with selectors: mail
  • ✓ Strong keys #23
    DKIM keys are strong enough: mail: 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

1 mail server

Found

PriorityHostRecordsReverse DNS
10mail.sevenvm.deA 217.154.9.142no PTR

Checks

  • ✓ 1 MX record #9
    Found 1 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.sevenvm.de
    #11
  • !
    Single MX host, no backup
    Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • ✓ At most 5 MX records #13
    Found 1 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.
  • !
    Addresses without reverse DNS
    These MX addresses have no PTR record, which many receivers treat as a spam signal: 217.154.9.142 (mail.sevenvm.de). Ask your hosting provider to set one.
    #30

TLS

fail

MTA-STS record without policy · TLS-RPT · DANE on 0 of 1 MX hosts

Found

MTA-STS record
v=STSv1; id=8468590032789557456
Policy URL
https://mta-sts.sevenvm.de/.well-known/mta-sts.txt
Policy error
Get "https://mta-sts.sevenvm.de/.well-known/mta-sts.txt": remote error: tls: unrecognized name
TLS-RPT record
v=TLSRPTv1; rua=mailto:postmaster@sevenvm.de

DANE (TLSA records)

MX hostTLSADNSSEC
mail.sevenvm.denone-

Checks

  • ✓ Record published #32
    MTA-STS record found with id 8468590032789557456.
  • ✗
    Policy not reachable
    The MTA-STS record exists but the policy could not be fetched, so senders ignore MTA-STS: Get "https://mta-sts.sevenvm.de/.well-known/mta-sts.txt": remote error: tls: unrecognized name.
    #33
  • ✓ Reports enabled #35
    TLS reports are sent to: mailto:postmaster@sevenvm.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

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