topix.com

Checked 22 October 2026, 11:11 UTC · via 8.8.8.8
✗Problems found
22 passed 3 warnings 2 failed 3 info

SPF

fail

SPF record published

Found

Record
v=spf1 mx include:spf.protection.outlook.com include:amazonses.com include:spf.myoutlookonline.com include:reflexion.net ip4:34.217.215.98 ip4:69.25.74.32/27 ip4:64.95.72.224/27 ip4:64.95.72.192/26 ip4:69.25.75.192/26 ip4:66.150.196.0/24 ip4:74.201.97.0/24 ip4:64.18.0.0/20 ip4:208.65.144.0/21 ip4:208.81.64.0/21 ip4:64.13.129.141 ip4:64.13.129.142 ip4:64.13.129.143 ip4:54.148.52.45 -all
DNS lookups
13 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✗
    13 DNS lookups, over the limit of 10
    SPF record needs 13 DNS lookups (including nested includes), more than the limit of 10. Receivers will return a permerror; reduce includes or flatten the record.
    #2
  • ✓ 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.topix.com)

Found

Record
v=DMARC1;p=reject;rua=mailto:8f13207c96@rua.easydmarc.us;ruf=mailto:8f13207c96@ruf.easydmarc.us;fo=1;
Found at
_dmarc.topix.com
External report address
mailto:8f13207c96@rua.easydmarc.us (authorized)
External report address
mailto:8f13207c96@ruf.easydmarc.us (authorized)
TagValueMeaning
vDMARC1Version
prejectPolicy
ruamailto:8f13207c96@rua.easydmarc.usAggregate report addresses
rufmailto:8f13207c96@ruf.easydmarc.usFailure 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:8f13207c96@rua.easydmarc.us
  • ✓ 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

fail

No keys found under the checked selectors

Found

Selectors
None found
_domainkey
NXDOMAIN

Checks

  • ✗
    No DKIM keys published
    _domainkey.topix.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
0topix-com.mail.protection.outlook.comA 52.101.194.158 A 52.101.42.165 A 52.101.41.24 A 52.101.10.12 AAAA 2a01:111:f403:c903::3 AAAA 2a01:111:f403:c922::2 AAAA 2a01:111:f403:f904::2 AAAA 2a01:111:f403:f90a::8mail-ch3pr04cu00106.inbound.protection.outlook.com ✓ mail-co2pr03cu00305.inbound.protection.outlook.com ✓ mail-sj0pr03cu01600.inbound.protection.outlook.com ✓ mail-bn1pr21cu00204.inbound.protection.outlook.com ✓ mail-mw2pr02cu00503.inbound.protection.outlook.com ✓ mail-bl0pr02cu00702.inbound.protection.outlook.com ✓ mail-ds2pr05cu00102.inbound.protection.outlook.com ✓ mail-bn0pr05cu00100.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
topix-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