watchguard.com

Checked 22 October 2026, 11:24 UTC · via 8.8.8.8
✗Problems found
28 passed 4 warnings 1 failed 1 info

SPF

pass

SPF record published

Found

Record
v=spf1 include:watchguard_com._es.easydmarc.com -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.watchguard.com)

Found

Record
v=DMARC1;p=reject;rua=mailto:e0b7f8216c@rua.easydmarc.us,mailto:DMARCReports@watchguard.com,mailto:dmarc@smtpeter.com;ruf=mailto:e0b7f8216c@ruf.easydmarc.us,mailto:ForensicDMARCReports@watchguard.com;fo=1
Found at
_dmarc.watchguard.com
External report address
mailto:e0b7f8216c@rua.easydmarc.us (authorized)
External report address
mailto:dmarc@smtpeter.com (authorized)
External report address
mailto:e0b7f8216c@ruf.easydmarc.us (authorized)
TagValueMeaning
vDMARC1Version
prejectPolicy
ruamailto:e0b7f8216c@rua.easydmarc.us,mailto:DMARCReports@watchguard.com,mailto:dmarc@smtpeter.comAggregate report addresses
rufmailto:e0b7f8216c@ruf.easydmarc.us,mailto:ForensicDMARCReports@watchguard.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:e0b7f8216c@rua.easydmarc.us, mailto:DMARCReports@watchguard.com, mailto:dmarc@smtpeter.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: k1, selector1, s1, s2

Found

Selectors
k1, selector1, s1, s2
_domainkey
NOERROR
SelectorKeyFlags
k1RSA 1024 bits
selector1RSA 1024 bits
s1RSA 2048 bits
s2RSA 1024 bits

Checks

  • ✓ Keys found: k1, selector1, s1, s2 #7
    DKIM keys found for this domain with selectors: k1, selector1, s1, s2
  • !
    1024-bit DKIM key
    1024-bit RSA keys are the minimum and are considered weak today: k1 (1024 bits), selector1 (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
10mx-cluster-usa01.hornetsecurity.comA 173.45.18.100hsmx01-hz5.hornetsecurity.com ✓
20mx-cluster-usa02.hornetsecurity.comA 173.45.18.100hsmx01-hz5.hornetsecurity.com ✓
30mx-cluster-usa03.hornetsecurity.comA 173.45.18.100hsmx01-hz5.hornetsecurity.com ✓
40mx-cluster-usa04.hornetsecurity.comA 173.45.18.100hsmx01-hz5.hornetsecurity.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: mx-cluster-usa01.hornetsecurity.com, mx-cluster-usa02.hornetsecurity.com, mx-cluster-usa03.hornetsecurity.com, mx-cluster-usa04.hornetsecurity.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

fail

MTA-STS record without policy · no TLS-RPT · DANE on 0 of 4 MX hosts

Found

MTA-STS record
v=STSv1; id=20251021082000Z;
Policy URL
https://mta-sts.watchguard.com/.well-known/mta-sts.txt
Policy error
Get "https://mta-sts.watchguard.com/.well-known/mta-sts.txt": dial tcp: lookup mta-sts.watchguard.com on 127.0.0.53:53: no such host

DANE (TLSA records)

MX hostTLSADNSSEC
mx-cluster-usa01.hornetsecurity.comnone-
mx-cluster-usa02.hornetsecurity.comnone-
mx-cluster-usa03.hornetsecurity.comnone-
mx-cluster-usa04.hornetsecurity.comnone-

Checks

  • ✓ Record published #32
    MTA-STS record found with id 20251021082000Z.
  • ✗
    Policy not reachable
    The MTA-STS record exists but the policy could not be fetched, so senders ignore MTA-STS: Get "https://mta-sts.watchguard.com/.well-known/mta-sts.txt": dial tcp: lookup mta-sts.watchguard.com on 127.0.0.53:53: no such host.
    #33
  • !
    Not configured
    MTA-STS or DANE is used without TLS-RPT, so you get no reports when senders fail to deliver because of TLS problems. Publish _smtp._tls TXT "v=TLSRPTv1; rua=mailto:...".
    #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://vmc.digicert.com/3d0cb2f3-76dc-47dc-9c38-8dd43cfb5a59.svg

Found

Record
v=BIMI1; l=https://vmc.digicert.com/3d0cb2f3-76dc-47dc-9c38-8dd43cfb5a59.svg; a=https://vmc.digicert.com/3d0cb2f3-76dc-47dc-9c38-8dd43cfb5a59.pem
Found at
default._bimi.watchguard.com
Logo
https://vmc.digicert.com/3d0cb2f3-76dc-47dc-9c38-8dd43cfb5a59.svg
Certificate
https://vmc.digicert.com/3d0cb2f3-76dc-47dc-9c38-8dd43cfb5a59.pem

Checks

  • ✓ Logo and certificate published #38
    BIMI logo: https://vmc.digicert.com/3d0cb2f3-76dc-47dc-9c38-8dd43cfb5a59.svg; certificate: https://vmc.digicert.com/3d0cb2f3-76dc-47dc-9c38-8dd43cfb5a59.pem
  • ✓ DMARC meets BIMI requirements #39
    DMARC is enforced on all mail, as BIMI requires.