visitbritain.com

Checked 22 October 2026, 11:22 UTC · via 8.8.8.8
!Passed with warnings
28 passed 4 warnings 0 failed 2 info

SPF

pass

SPF record published

Found

Record
v=spf1 ip4:91.193.104.0/24 ip4:3.9.199.217 ip4:3.9.100.217 ip4:159.183.181.113 ip4:149.72.116.19 ip4:149.72.117.225 ip4:149.72.119.192 ip4:149.72.119.197 include:_spf.eu.messagegears.net ip4:149.72.119.199 ip4:149.72.119.210 ip4:149.72.147.106 ip4:149.72.148.50 ip4:149.72.155.21 ip4:149.72.160.121 ip4:149.72.166.148 include:_spf.google.com include:spf.mandrillapp.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.visitbritain.com)

Found

Record
v=DMARC1; p=reject; rua=mailto:yqC2Y24aoHV@dmarc-rua.mailcheck.service.ncsc.gov.uk;
Found at
_dmarc.visitbritain.com
External report address
mailto:yqC2Y24aoHV@dmarc-rua.mailcheck.service.ncsc.gov.uk (authorized)
TagValueMeaning
vDMARC1Version
prejectPolicy
ruamailto:yqC2Y24aoHV@dmarc-rua.mailcheck.service.ncsc.gov.ukAggregate report addresses

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:yqC2Y24aoHV@dmarc-rua.mailcheck.service.ncsc.gov.uk
  • ✓ 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: s1, s2

Found

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

Checks

  • ✓ Keys found: s1, s2 #7
    DKIM keys found for this domain with selectors: s1, s2
  • !
    1024-bit DKIM key
    1024-bit RSA keys are the minimum and are considered weak today: 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
10cluster8.eu.messagelabs.comA 195.245.231.66 A 195.245.231.71 A 195.245.230.195 A 85.158.142.211 A 195.245.230.198 A 85.158.142.216mail871.messagelabs.com ✓ mail875.messagelabs.com ✓ mail853.messagelabs.com ✓ mail835.messagelabs.com ✓ mail856.messagelabs.com ✓ mail840.messagelabs.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: cluster8.eu.messagelabs.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 6 MX addresss have a PTR record that resolves back to them.

TLS

info

MTA-STS enforce · TLS-RPT · DANE on 0 of 1 MX hosts

Found

MTA-STS record
v=STSv1; id=16012024
Policy URL
https://mta-sts.visitbritain.com/.well-known/mta-sts.txt
Mode
enforce
Allowed MX
cluster8.eu.messagelabs.com, cluster8a.eu.messagelabs.com
Max age
1209600 seconds
TLS-RPT record
v=TLSRPTv1;rua=mailto:tls-rua@mailcheck.service.ncsc.gov.uk

DANE (TLSA records)

MX hostTLSADNSSEC
cluster8.eu.messagelabs.comnone-

Checks

  • ✓ Record published #32
    MTA-STS record found with id 16012024.
  • ✓ Policy enforced #33
    The MTA-STS policy is enforced and cached for 336h0m0s.
  • ✓ All MX hosts covered #34
    Every MX host matches an mx: line of the MTA-STS policy.
  • ✓ Reports enabled #35
    TLS reports are sent to: mailto:tls-rua@mailcheck.service.ncsc.gov.uk
  • 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