visual-paradigm.com

Checked 22 October 2026, 11:22 UTC · via 8.8.8.8
✗Problems found
21 passed 7 warnings 1 failed 3 info

SPF

fail

SPF record published

Found

Record
v=spf1 ip4:54.235.172.80 include:mailus2.visual-paradigm.com include:o1.ptr1632.visual-paradigm.com include:mail02.visual-paradigm.com -all
DNS lookups
3 of 10
Void lookups
3 of 2
Problem
include:mailus2.visual-paradigm.com does not exist or has no records
Problem
include:o1.ptr1632.visual-paradigm.com does not exist or has no records
Problem
include:mail02.visual-paradigm.com does not exist or has no records

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • !
    3 of 10 DNS lookups, with problems
    SPF record needs 3 DNS lookups (limit is 10). Problems found: include:mailus2.visual-paradigm.com does not exist or has no records; include:o1.ptr1632.visual-paradigm.com does not exist or has no records; include:mail02.visual-paradigm.com does not exist or has no records.
    #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.
  • ✗
    3 void lookups, over the limit of 2
    3 include/redirect targets do not exist or have no records. More than 2 makes receivers reject the SPF record (permerror). Remove the stale includes.
    #26
  • ✓ No overly broad IP ranges #27
    All ip4/ip6 ranges are narrow enough.

DMARC

warn

p=quarantine (_dmarc.visual-paradigm.com)

Found

Record
v=DMARC1; p=quarantine; rua=mailto:support@visual-paradigm.com
Found at
_dmarc.visual-paradigm.com
TagValueMeaning
vDMARC1Version
pquarantinePolicy
ruamailto:support@visual-paradigm.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 100% of mail #18
    DMARC policy applies to all failing mail.
  • ✓ Aggregate reports enabled #19
    Aggregate reports are sent to: mailto:support@visual-paradigm.com
  • ✓ Subdomain policy: quarantine #20
    Subdomains are covered by policy 'quarantine'.
  • ✓ Report addresses in own domain #29
    All report addresses are in your own organizational domain.

DKIM

warn

Selectors: mail, s1, s2

Found

Selectors
mail, s1, s2
_domainkey
NOERROR
SelectorKeyFlags
mailRSA 1024 bits
s1RSA 2048 bits
s2RSA 1024 bits

Checks

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

1 mail server

Found

PriorityHostRecordsReverse DNS
10mailus2.visual-paradigm.comA 54.235.172.80mailus2.visual-paradigm.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.
  • !
    Hosts without IPv6
    The following MX hosts could not be resolved to IPv6 addresses: mailus2.visual-paradigm.com
    #11
  • !
    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 1 MX address 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
mailus2.visual-paradigm.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