DMARC Adoption in USMCA
As of September 2025, 70.8% of domains in the USMCA group have no effective DMARC protection. Only 9.7% have full protection with a reject policy at 100% enforcement, while 19.5% have partial coverage through quarantine or gradual rollout. Based on DmarcDkim.com's monitoring of 15,368 domains in USMCA Economic Area.
DMARC Protection Levels
The gap between publishing a DMARC record and actually enforcing a reject or quarantine policy is where most domains fall short.
| Protection Level | Percentage | Domains |
|---|---|---|
|
Full Protection
(p=reject; pct=100)
|
9.7% | 1,491 |
|
Partial Protection
(p=quarantine or pct<100)
|
19.5% | 2,997 |
|
No Protection
(p=none, invalid, or absent)
|
70.8% | 10,881 |
DMARC Protection Comparison by USMCA
Side-by-side comparison of DMARC protection levels across USMCA subcategories. Leading in full protection: United States (12.2%), Canada (8.2%), Mexico (8.0%) .
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 Breakdown USMCA
The five-category policy breakdown reveals where organizations in USMCA stand on the path from monitoring to full enforcement.
| Policy Distribution | Percentage | Domains |
|---|---|---|
|
Strict Policy
(p=quarantine/reject, pct=100)
|
25.1% | 3,857 |
|
In Progress
(pct < 100)
|
3.8% | 584 |
|
Disabled
(p=none; pct=0)
|
30.4% | 4,672 |
|
Invalid Record
|
1.1% | 169 |
|
No Record
|
39.5% | 6,070 |
Dive deeper into DMARC adoption in USMCA. See how email authentication rates compare across subcategories and spot where enforcement is strongest.
Historical DMARC Adoption Data
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.