888slots.de

Checked 21 October 2026, 21:27 UTC · via 8.8.8.8
✗Problems found
19 passed 7 warnings 1 failed 3 info

SPF

pass

SPF record published

Found

Record
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:mailgun.org ~all
DNS lookups
6 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 6 of 10 DNS lookups #2
    SPF record needs 6 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.888slots.de)

Found

Record
v=DMARC1; p=none; rua=mailto:ziv.shemesh@888holdings.com,mailto:dmarc_agg@vali.email;
Found at
_dmarc.888slots.de
External report address
mailto:ziv.shemesh@888holdings.com (not authorized)
External report address
mailto:dmarc_agg@vali.email (authorized)
TagValueMeaning
vDMARC1Version
pnonePolicy
ruamailto:ziv.shemesh@888holdings.com,mailto:dmarc_agg@vali.emailAggregate report addresses

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:ziv.shemesh@888holdings.com, mailto:dmarc_agg@vali.email
  • !
    Report address not authorized
    These report addresses are in another domain that has not agreed to receive your reports, so receivers will not send them: mailto:ziv.shemesh@888holdings.com (needs 888slots.de._report._dmarc.888holdings.com). Ask the report provider to publish the record, or check the address.
    #29

DKIM

warn

Selectors: s1

Found

Selectors
s1
_domainkey
NXDOMAIN
SelectorKeyFlags
s1RSA 1024 bits

Checks

  • ✓ Keys found: s1 #7
    DKIM keys found for this domain with selectors: s1
  • !
    1024-bit DKIM key
    1024-bit RSA keys are the minimum and are considered weak today: s1 (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

14 mail servers

Found

PriorityHostRecordsReverse DNS
10mxa.eu.mailgun.orgA 34.111.130.244244.130.111.34.bc.googleusercontent.com ✓
10mxb.eu.mailgun.orgA 34.111.130.244244.130.111.34.bc.googleusercontent.com ✓
10reply.promotions.cassava.netA 74.121.50.42reply.mkt41.net (does not resolve back)
20mail1923.e.bingosupport.orgA 208.85.53.123mail1923.e.bingosupport.org ✓
20mail2108.confirmation.cassava.netA 74.112.66.8mail2108.confirmation.cassava.net ✓
20mail2379.cassava-mytopi.mkt2773.comA 74.112.67.72mail2379.cassava-mytopi.mkt2773.com ✓
20mail2380.cassava-mytopi.mkt2774.comA 74.112.67.73mail2380.cassava-mytopi.mkt2774.com ✓
20mail2391.spacebar.mkt2785.comA 74.112.67.84mail2391.spacebar.mkt2785.com ✓
20mail2392.spacebar.mkt2786.comA 74.112.67.85mail2392.spacebar.mkt2786.com ✓
20mail2414.promotions.cassava.netA 74.112.67.107mail2414.promotions.cassava.net ✓
20mail2415.promotions.cassava.netA 74.112.67.108mail2415.promotions.cassava.net ✓
20mail2416.promotions.888brands.netA 74.112.67.109mail2416.promotions.888brands.net ✓
20mail2421.promotions.cassava.netA 74.112.67.114mail2421.promotions.cassava.net ✓
20mail2794.cassavaengage.mkt3390.comA 74.112.65.178mail2794.cassavaengage.mkt3390.com ✓

Checks

  • ✓ 14 MX records #9
    Found 14 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: mxa.eu.mailgun.org, mxb.eu.mailgun.org, reply.promotions.cassava.net, mail1923.e.bingosupport.org, mail2108.confirmation.cassava.net, mail2379.cassava-mytopi.mkt2773.com, mail2380.cassava-mytopi.mkt2774.com, mail2391.spacebar.mkt2785.com, mail2392.spacebar.mkt2786.com, mail2414.promotions.cassava.net, mail2415.promotions.cassava.net, mail2416.promotions.888brands.net, mail2421.promotions.cassava.net, mail2794.cassavaengage.mkt3390.com
    #11
  • ✓ Redundant MX hosts #12
    Found 14 MX records, which provides redundancy for email delivery.
  • !
    More than 5 MX records
    Found 14 MX records, which is more than the recommended maximum of 5. Too many MX records may indicate a misconfiguration.
    #13
  • ✓ 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: 74.121.50.42 -> reply.mkt41.net.
    #30

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 14 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
mxa.eu.mailgun.orgnone-
mxb.eu.mailgun.orgnone-
reply.promotions.cassava.netnone-
mail1923.e.bingosupport.orgnone-
mail2108.confirmation.cassava.netnone-
mail2379.cassava-mytopi.mkt2773.comnone-
mail2380.cassava-mytopi.mkt2774.comnone-
mail2391.spacebar.mkt2785.comnone-
mail2392.spacebar.mkt2786.comnone-
mail2414.promotions.cassava.netnone-
mail2415.promotions.cassava.netnone-
mail2416.promotions.888brands.netnone-
mail2421.promotions.cassava.netnone-
mail2794.cassavaengage.mkt3390.comnone-

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