Financial organizations lead the market in perimeter defense with an 88.3% valid SPF deployment rate. Crucially, only 6.8% of financial domains completely lack DMARC coverage, the strongest adoption footprint among studied sectors. Furthermore, 44.7% of finance domains execute strict p=reject policies. However, transport-layer protection remains a significant weak point, with only 1.9% utilizing enforced MTA-STS.
Norwegian public administration and municipal domains show a stable foundation of technical tracking, matching a 90.0% correct SPF score with a 13.3% rate of missing DMARC records. However, the sector takes a cautious approach to policy escalation, leaving 35.9% at protective p=reject thresholds. While demonstrating strong zone integrity with a 51.7% DNSSEC adoption rate, active MTA-STS enforcement sits at a nominal 3.3%.
Norway's medical and health infrastructure stands out for active policy enforcement, leading the nation with a 55.6% adoption rate of the protective p=reject policy. Foundational records are similarly stable, with a 92.1% correct SPF rate and just 9.5% lacking a DMARC record entirely. Still, an unresolved loophole remains at the encryption layer, where active MTA-STS adoption stays minimal at only 1.6%.
As primary operators of connectivity networks, Norwegian telecom providers maintain an 81.8% correct SPF rate. Despite this framework, the industry has a low rate of strict p=reject enforcement at just 16.6%, while 20.7% of domains entirely lack a DMARC record. This lack of active enforcement is compounded by an alarmingly low adoption rate for MTA-STS, with 97.5% failing to deploy the protocol.
Norwegian universities and higher education institutions manage decentralized sending architectures, showing a 79.1% correct SPF baseline. However, nearly a quarter of educational domains (24.5%) entirely lack DMARC defense, and only 20.0% run a strict p=reject policy, leaving academic networks exposed to research-grant fraud and phishing. Active MTA-STS adoption sits at a low 5.5%.
Logistics networks serve as the backbone of regional trade, leading the country in DNSSEC integration at 53.0%. However, real email defense remains severely limited. The industry records the worst DMARC adoption across Norway, with 28.8% of domains entirely unprotected. Furthermore, a nominal 9.1% of logistics domains have transitioned to a strict p=reject enforcement level.