secunia.com

Checked 22 October 2026, 10:36 UTC · via 8.8.8.8
✗Problems found
20 passed 6 warnings 1 failed 3 info

SPF

pass

SPF record published

Found

Record
v=spf1 mx include:amazonses.com ip4:91.198.117.240 ip4:185.109.133.106 ip4:185.109.133.254 ip4:52.18.10.153 ip4:52.31.47.229 include:spf.protection.outlook.com a:docusign.net -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

warn

p=quarantine (_dmarc.secunia.com)

Found

Record
v=DMARC1; p=quarantine; pct=10; rua=mailto:DG-DMARC-FLX@flexera.com;
Found at
_dmarc.secunia.com
External report address
mailto:DG-DMARC-FLX@flexera.com (not authorized)
TagValueMeaning
vDMARC1Version
pquarantinePolicy
pct10Percentage of mail the policy applies to
ruamailto:DG-DMARC-FLX@flexera.comAggregate report addresses

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 10% of mail
    DMARC policy only applies to 10% of failing mail (pct=10). Raise pct to 100 once you are confident in your setup.
    #18
  • ✓ Aggregate reports enabled #19
    Aggregate reports are sent to: mailto:DG-DMARC-FLX@flexera.com
  • ✓ Subdomain policy: quarantine #20
    Subdomains are covered by policy 'quarantine'.
  • !
    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:DG-DMARC-FLX@flexera.com (needs secunia.com._report._dmarc.flexera.com). Ask the report provider to publish the record, or check the address.
    #29

DKIM

fail

No keys found under the checked selectors

Found

Selectors
None found
_domainkey
NXDOMAIN

Checks

  • ✗
    No DKIM keys published
    _domainkey.secunia.com 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

1 mail server

Found

PriorityHostRecordsReverse DNS
1secunia-com.mail.protection.outlook.comA 52.101.42.87 A 52.101.194.161 A 52.101.9.24 A 52.101.41.4 AAAA 2a01:111:f403:f804:: AAAA 2a01:111:f403:c902::16 AAAA 2a01:111:f403:c918::3 AAAA 2a01:111:f403:c946::14mail-co2pr03cu00207.inbound.protection.outlook.com ✓ mail-ch2pr02cu00201.inbound.protection.outlook.com ✓ mail-bl2pr02cu00400.inbound.protection.outlook.com ✓ mail-sj2pr05cu00204.inbound.protection.outlook.com ✓ mail-mw5pr21cu00100.inbound.protection.outlook.com ✓ mail-byapr04cu00306.inbound.protection.outlook.com ✓ mail-byapr03cu00203.inbound.protection.outlook.com ✓ mail-ch3pr04cu00104.inbound.protection.outlook.com ✓

Checks

  • ✓ 1 MX record #9
    Found 1 MX records for this domain.
  • ✓ All hosts resolve #10
    All MX records resolve to valid IP addresses.
  • ✓ All hosts have IPv6 #11
    All MX records resolve to IPv6 addresses.
  • !
    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 8 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
secunia-com.mail.protection.outlook.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