DMARC Adoption in Japan
In December 2025, 87.4% of domains in Japan had no effective DMARC protection. Only 5.2% had full protection with a reject policy at 100% enforcement, while 7.3% had partial coverage through quarantine or gradual rollout. Based on DmarcDkim.com's monitoring of 1,338 domains in Japan.
Historical DMARC Adoption Data
December 2025
Current
Japan DMARC Protection Levels
The gap between publishing a DMARC record and actually enforcing a reject or quarantine policy is where most domains in Japan fall short.
| Protection Level | Percentage | Domains |
|---|---|---|
|
Full Protection
(p=reject; pct=100)
|
5.2% | 70 |
|
Partial Protection
(p=quarantine or pct<100)
|
7.3% | 98 |
|
No Protection
(p=none, invalid, or absent)
|
87.4% | 1,169 |
DMARC statistics improve one domain at a time.
How to Implement DMARC
DMARC is more than a DNS record — it is a process of taking control of an organization's email infrastructure.
Check the Domain
Run a free DMARC check to see the current authentication status and identify weak spots in the email setup.
Start Collecting Reports
Publish a DMARC record with a monitoring policy to begin receiving reports about who sends email on the domain's behalf.
Fix Email Sources
Use the DMARC Dashboard to identify misconfigured email sources and align SPF and DKIM across all senders.
Enforce a Strict Policy
Move to quarantine to divert suspicious messages to spam, then to reject to block them outright and protect the brand from impersonation.
DMARC Policy Distribution in Japan
The five-category policy breakdown shows where organizations in Japan stand on the path from monitoring to full enforcement.
| Policy Distribution | Percentage | Domains |
|---|---|---|
|
Strict Policy
(p=quarantine/reject, pct=100)
|
11.2% | 150 |
|
In Progress
(pct < 100)
|
1.1% | 15 |
|
Disabled
(p=none; pct=0)
|
47.8% | 640 |
|
Invalid Record
|
0.7% | 9 |
|
No Record
|
39.2% | 524 |
Japan vs Global DMARC Adoption
Japan trails the global average by 14.2%, pointing to an opportunity to strengthen email domain protection.
Japan
11.2%
Strict DMARC Adoption
Global Average
25.4%
Strict DMARC Adoption
Compare Japan's email authentication rates with related categories. See who leads on DMARC enforcement and where the gaps remain.
About Percentage Changes
All percentage changes shown on this page represent percentage points (pp), not relative percentage changes. For example, an increase from 10% to 15% is reported as +5%, meaning a 5 percentage point increase.
Check if your domain is DMARC compliant
Run a free DMARC, SPF, and DKIM check and get a plan to fix them.