SPF policy · UK dormant companies
What share of UK dormant companies have no enforcing SPF record (absent, ~all soft-fail, or +all)?
70.26% of UK dormant companies (95% CI 63.5–76.23%), measured across 195 companies on 2026-08-17.
Measured every Monday since 2026-08-01 — 3 observations to date. Last measured 2026-08-17.
How this is measured
Tier 0. TXT at the apex; find v=spf1, read the all qualifier, count direct lookups. Denominator: has_mx.
Passive measurement: a single DNS lookup, TLS handshake, or homepage GET per domain. Aggregate-only; no individual company is named. 95% Wilson confidence intervals. Population: national company registries (Companies House, Brreg, SIRENE), sampled by size band and resolved to email-active domains. Parked domains excluded. Snapshot: uk-companies-house-per600-seed20260728.
Licensed CC BY 4.0 — reuse with attribution to Quiet Failures. Download: JSON · CSV.
Check a specific domain against this control with the free Email authentication audit.
Why it matters
~all is the SPF equivalent of p=none and overwhelmingly the most common configuration — it asks receivers to accept-but-mark, so spoofed mail still arrives. +all authorises the entire internet to send as you. Exceeding the 10-lookup limit makes the record fail permanently and silently, because receivers abort evaluation.
Limits of this measurement
The lookup count is non-recursive (it does not expand include:), so it is a lower bound and catches only egregiously over-limit records.
The same check, other segments
- South Korea (domains)95.05%
- Russia (domains)94.57%
- Ukraine (domains)93.24%
- Indonesia (domains)89.61%
- Japan (domains)89.24%
- Bulgaria (domains)88.82%
- Chile (domains)87.55%
- Lithuania (domains)86.2%
Show the remaining 65 segments
- Taiwan (domains)83.8%
- India (domains)82.42%
- Hungary (domains)82.12%
- Israel (domains)81.5%
- Croatia (domains)80.76%
- Slovenia (domains)79.51%
- Peru (domains)79.22%
- Romania (domains)79.18%
- Italy (domains)78.99%
- South Africa (domains)78.2%
- Canada (domains)75.81%
- the Philippines (domains)75.78%
- Mexico (domains)75.73%
- Spain (domains)75.54%
- Hong Kong (domains)75.52%
- France (domains)75.09%
- Finland (domains)74.81%
- Germany (domains)74.6%
- Vietnam (domains)74.55%
- Czechia (domains)73.53%
- the US (domains)73.11%
- Thailand (domains)73.08%
- Brazil (domains)72.96%
- Latvia (domains)72.73%
- global domains72.39%
- the EU (domains)71.88%
- Singapore (domains)69.62%
- Malaysia (domains)69.51%
- New Zealand (domains)69.38%
- France micro companies69.34%
- Estonia (domains)68.46%
- Ireland (domains)67.56%
- UK micro companies67.53%
- Portugal (domains)67.26%
- the UAE (domains)67.19%
- Norway (domains)67.04%
- the UK (domains)67.01%
- Saudi Arabia (domains)66.79%
- Sweden (domains)66.38%
- Slovakia (domains)65.32%
- UK newly-formed (no accounts filed) companies65.1%
- Belgium (domains)65.08%
- Denmark (domains)63.08%
- Turkey (domains)61.57%
- the Netherlands (domains)60.84%
- Australia (domains)60%
- France small companies59.59%
- France companies58.26%
- Argentina (domains)57.89%
- Iceland (domains)57.69%
- UK companies57.3%
- UK small companies57.13%
- Greece (domains)55.84%
- Luxembourg (domains)55.64%
- Switzerland (domains)55.59%
- Norway micro companies54.89%
- France large companies52.72%
- Austria (domains)51.99%
- UK medium & large companies51.22%
- France medium companies50%
- Norway companies44.49%
- Norway small companies42.98%
- Norway medium companies41.11%
- Poland (domains)40.43%
- Norway large companies36.07%