DMARC Spoof Detection, Puerto Rico
Clear Clear FilterThis page shows DMARC authentication failures originating from Puerto Rico. Learn more about this data.
Puerto Rico accounts for 1 DMARC authentication failure observed by sh4meful over the observation window, sourced from 1 distinct IP address across 1 network. This represents approximately 0.0% of total failure volume observed. Activity from Puerto Rico has declined over the last 30 days compared with the prior 30-day period. The most active source is LCPRL with 1 failures across 1 IP address.
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Top Networks in Puerto Rico
Ten most active networks sourcing DMARC failures from Puerto Rico:
| Network | Organization | Failures | Distinct IPs | Top City |
|---|---|---|---|---|
| LCPRL | — | 1 | 1 | Arecibo |
LCPRL accounts for the majority of observed failure volume from this country.
Failure Activity Over Time
Peak activity was observed in the week of June 15, 2026 with 3 failures recorded. Activity in the most recent 30-day window declined sharply compared with the prior period (0 vs 3 failures).
Regional Context
Compared with peer geographies in Caribbean, Puerto Rico's failure volume is below the regional median. Countries in this region collectively contributed 0% of failures observed.
Failures
Showing 1-1 of 1 failures, affecting 3 messages| Date ▲ | Source IP | Country | City | Network | Messages |
|---|---|---|---|---|---|
| 6/21/2026 | PR Puerto Rico | Arecibo | 3 |
What This Means
Country-level patterns don't imply that mail from Puerto Rico is inherently malicious. Many failures reflect misconfigured legitimate senders, forwarded messages that break authentication, or automated infrastructure operating without authorization. Domain owners investigating a specific failure should look at the source IP and network details rather than the country alone. Our DMARC guide explains how to interpret these signals in your own reports.