SAM-native cross-sector DNS and email security comparison across 406,680 domains classified by entity type, business size, and NAICS sector
SPF, DMARC, and MX adoption rates across 6 sectors derived from SAM.gov entity_type + business_size. Ordered by DMARC adoption.
| Sector | Domains | MX % | SPF % | DMARC % | Proxy % |
|---|
Domains using a dedicated email security gateway (Proofpoint, Mimecast, Barracuda, etc.) as their MX. Higher = more security investment.
| Metric | Count |
|---|---|
| SAM.gov government entities total | 70,762 |
| Federal (out of scope) | 1,350 |
| No domain registered | 33,548 |
| Already in dataset | 12,338 |
| Gap candidates (not yet covered) | 23,526 |
| HIGH priority (Local + State gov) | 21,132 |
| Gap by Government Type | Entities |
|---|---|
| Government (Local) | 18,590 |
| Government (State) | 2,542 |
| Government (Other) | 2,171 |
| Government (Tribal) | 223 |
These are SAM-registered government entities with valid domains not yet in MonitorWorkspace's 35,855-domain public-sector dataset. Candidates for future dataset augmentation.
Top email providers by MX record — small businesses vs MonitorWorkspace public entities.
| Dataset | Proxied SPF | Proxied DMARC | Non-Proxied SPF | Non-Proxied DMARC |
|---|---|---|---|---|
| Small Business | 99.4% | 61.1% | 85.1% | 54.6% |
| Public Entities | 97.3% | 75.7% | 89.2% | 53.0% |
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