kvv.de

Checked 21 October 2026, 23:11 UTC · via 8.8.8.8
✗Problems found
19 passed 5 warnings 1 failed 3 info

SPF

pass

SPF record published

Found

Record
v=spf1 a mx include:spf.flowmailer.net ip4:213.144.24.66 ip4:185.5.24.30 ip4:37.148.204.116 ip4:54.240.98.7 ip4:162.55.134.11 include:spf.tmes.trendmicro.eu -all
DNS lookups
4 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 4 of 10 DNS lookups #2
    SPF record needs 4 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.kvv.de)

Found

Record
v=DMARC1;p=none;rua=mailto:dmarc@inbound.flowmailer.net, mailto:dmarc@dfrjgcfx.uriports.com;ruf=mailto:dmarc@inbound.flowmailer.net, mailto:dmarc@dfrjgcfx.uriports.com;fo=1
Found at
_dmarc.kvv.de
External report address
mailto:dmarc@inbound.flowmailer.net (authorized)
External report address
mailto:dmarc@dfrjgcfx.uriports.com (authorized)
TagValueMeaning
vDMARC1Version
pnonePolicy
ruamailto:dmarc@inbound.flowmailer.net, mailto:dmarc@dfrjgcfx.uriports.comAggregate report addresses
rufmailto:dmarc@inbound.flowmailer.net, mailto:dmarc@dfrjgcfx.uriports.comFailure report addresses
fo1Failure reporting options

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:dmarc@inbound.flowmailer.net, mailto:dmarc@dfrjgcfx.uriports.com
  • ✓ External report addresses authorized #29
    Report addresses in other domains have published their authorization.

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

1 mail server

Found

PriorityHostRecordsReverse DNS
10vbk.in.tmes.trendmicro.euA 18.185.115.146 A 18.185.115.145 A 18.185.115.147in.tmes.trendmicro.eu ✓ in.tmes.trendmicro.eu ✓ in.tmes.trendmicro.eu ✓

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: vbk.in.tmes.trendmicro.eu
    #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.
  • ✓ Reverse DNS confirmed #30
    All 3 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 1 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
vbk.in.tmes.trendmicro.eunone-

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