mercola.com

Checked 22 October 2026, 09:50 UTC · via 8.8.8.8
!Passed with warnings
25 passed 3 warnings 0 failed 3 info

SPF

pass

SPF record published

Found

Record
v=spf1 include:spf.protection.outlook.com include:dayforcehcm.com include:spf-us.emailsignatures365.com include:spf.zohomail360.com ip4:199.66.161.66/26 ip4:199.66.166.130/25 ip4:199.66.167.130/27 ip4:199.66.166.166 ip4:4.49.65.137 ip4:4.49.65.151 ~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

pass

p=reject (_dmarc.mercola.com)

Found

Record
v=DMARC1; p=reject; rua=mailto:10a1c490@mxtoolbox.dmarc-report.com,mailto:ipm7427@ar.glockapps.com; ruf=mailto:10a1c490@forensics.dmarc-report.com,mailto:ipm7427@fr.glockapps.com; fo=1; pct=100
Found at
_dmarc.mercola.com
External report address
mailto:10a1c490@mxtoolbox.dmarc-report.com (authorized)
External report address
mailto:ipm7427@ar.glockapps.com (authorized)
External report address
mailto:10a1c490@forensics.dmarc-report.com (authorized)
External report address
mailto:ipm7427@fr.glockapps.com (authorized)
TagValueMeaning
vDMARC1Version
prejectPolicy
pct100Percentage of mail the policy applies to
ruamailto:10a1c490@mxtoolbox.dmarc-report.com,mailto:ipm7427@ar.glockapps.comAggregate report addresses
rufmailto:10a1c490@forensics.dmarc-report.com,mailto:ipm7427@fr.glockapps.comFailure report addresses
fo1Failure reporting options

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:10a1c490@mxtoolbox.dmarc-report.com, mailto:ipm7427@ar.glockapps.com
  • ✓ Subdomain policy: reject #20
    Subdomains are covered by policy 'reject'.
  • ✓ External report addresses authorized #29
    Report addresses in other domains have published their authorization.

DKIM

info

DNS query for _domainkey.mercola.com failed: read udp 46.225.38.91:36711->8.8.8.8:53: i/o timeout

Checks

  • i
    Could not be checked
    The DKIM lookup failed, so this could not be checked: DNS query for _domainkey.mercola.com failed: read udp 46.225.38.91:36711->8.8.8.8:53: i/o timeout
    #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
0mercola-com.mail.protection.outlook.comA 52.101.202.147 A 52.101.42.170 A 52.101.9.11 A 52.101.42.162 AAAA 2a01:111:f403:c91d:: AAAA 2a01:111:f403:c946::10 AAAA 2a01:111:f403:f903::3 AAAA 2a01:111:f403:f805::4mail-ph7pr05cu00103.inbound.protection.outlook.com ✓ mail-mw5pr21cu00102.inbound.protection.outlook.com ✓ mail-bl1pr02cu00103.inbound.protection.outlook.com ✓ mail-ea3pr05cu00102.inbound.protection.outlook.com ✓ mail-mw2pr04cu00100.inbound.protection.outlook.com ✓ mail-ch4pr04cu00300.inbound.protection.outlook.com ✓ mail-mn0pr04cu00203.inbound.protection.outlook.com ✓ mail-mw2pr05cu00104.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
mercola-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

pass

https://media.mercola.com/brand/bimi/mercola_com_llc_1475080350.svg

Found

Record
v=BIMI1; l=https://media.mercola.com/brand/bimi/mercola_com_llc_1475080350.svg; a=https://media.mercola.com/brand/bimi/mercola_com_llc_1475080350.pem
Found at
default._bimi.mercola.com
Logo
https://media.mercola.com/brand/bimi/mercola_com_llc_1475080350.svg
Certificate
https://media.mercola.com/brand/bimi/mercola_com_llc_1475080350.pem

Checks

  • ✓ Logo and certificate published #38
    BIMI logo: https://media.mercola.com/brand/bimi/mercola_com_llc_1475080350.svg; certificate: https://media.mercola.com/brand/bimi/mercola_com_llc_1475080350.pem
  • ✓ DMARC meets BIMI requirements #39
    DMARC is enforced on all mail, as BIMI requires.