nba.com

Checked 22 October 2026, 10:00 UTC · via 8.8.8.8
!Passed with warnings
25 passed 5 warnings 0 failed 2 info

SPF

pass

SPF record published

Found

Record
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ip4:192.28.146.104/32 ip4:192.28.146.102/32 ip4:167.89.0.0/17 ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 include:mktomail.com include:mail.zendesk.com -all
DNS lookups
3 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 3 of 10 DNS lookups #2
    SPF record needs 3 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.nba.com)

Found

Record
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc_aggrpts@nba.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com,mailto:dmarc_forensicrpts@nba.com
Found at
_dmarc.nba.com
External report address
mailto:dmarc_rua@emaildefense.proofpoint.com (authorized)
External report address
mailto:dmarc_ruf@emaildefense.proofpoint.com (authorized)
TagValueMeaning
vDMARC1Version
prejectPolicy
ruamailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc_aggrpts@nba.comAggregate report addresses
rufmailto:dmarc_ruf@emaildefense.proofpoint.com,mailto:dmarc_forensicrpts@nba.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:dmarc_rua@emaildefense.proofpoint.com, mailto:dmarc_aggrpts@nba.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

warn

Selectors: selector1, selector2, s1, s2

Found

Selectors
selector1, selector2, s1, s2
_domainkey
NOERROR
SelectorKeyFlags
selector1RSA 1024 bits
selector2RSA 1024 bits
s1RSA 2048 bits
s2RSA 1024 bits

Checks

  • ✓ Keys found: selector1, selector2, s1, s2 #7
    DKIM keys found for this domain with selectors: selector1, selector2, s1, s2
  • !
    1024-bit DKIM key
    1024-bit RSA keys are the minimum and are considered weak today: selector1 (1024 bits), selector2 (1024 bits), s2 (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

4 mail servers

Found

PriorityHostRecordsReverse DNS
5mxa-001bf601.gslb.pphosted.comA 148.163.158.83mx0b-001bf601.pphosted.com ✓
5mxb-001bf601.gslb.pphosted.comA 148.163.156.86mx0a-001bf601.pphosted.com ✓
10mx0a-001bf601.pphosted.comA 148.163.156.86mx0a-001bf601.pphosted.com ✓
10mx0b-001bf601.pphosted.comA 148.163.158.83mx0b-001bf601.pphosted.com ✓

Checks

  • ✓ 4 MX records #9
    Found 4 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-001bf601.gslb.pphosted.com, mxb-001bf601.gslb.pphosted.com, mx0a-001bf601.pphosted.com, mx0b-001bf601.pphosted.com
    #11
  • ✓ Redundant MX hosts #12
    Found 4 MX records, which provides redundancy for email delivery.
  • ✓ At most 5 MX records #13
    Found 4 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 4 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 4 MX hosts (lookup failed for 2)

Found

DANE (TLSA records)

MX hostTLSADNSSEC
mxa-001bf601.gslb.pphosted.comDNS query for _25._tcp.mxa-001bf601.gslb.pphosted.com failed: read udp 46.225.38.91:53689->8.8.8.8:53: i/o timeout-
mxb-001bf601.gslb.pphosted.comDNS query for _25._tcp.mxb-001bf601.gslb.pphosted.com failed: read udp 46.225.38.91:50177->8.8.8.8:53: i/o timeout-
mx0a-001bf601.pphosted.comnone-
mx0b-001bf601.pphosted.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
  • !
    Not all MX hosts use DANE
    These MX hosts publish no TLSA records, so mail to them is not protected by DANE: mx0a-001bf601.pphosted.com, mx0b-001bf601.pphosted.com.
    #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