DMARC Spoof Detection, Dominican Republic
Clear Clear FilterThis page shows DMARC authentication failures originating from Dominican Republic. Learn more about this data.
Dominican Republic accounts for 11 DMARC authentication failures observed by sh4meful over the observation window, sourced from 11 distinct IP addresses across 3 networks. This represents approximately 0.2% of total failure volume observed. Activity from Dominican Republic has increased over the last 30 days compared with the prior 30-day period. The most active source is Compañía Dominicana de Teléfonos S. A. with 9 failures across 9 IP addresses.
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11
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Top Networks in Dominican Republic
Ten most active networks sourcing DMARC failures from Dominican Republic:
| Network | Organization | Failures | Distinct IPs | Top City |
|---|---|---|---|---|
| Compañía Dominicana de Teléfonos S. A. | — | 9 | 9 | Santo Domingo |
| ALTICE DOMINICANA S.A. | — | 1 | 1 | Baní |
| MEGARED-CGNT-NET-1 | — | 1 | 1 | Santo Domingo |
Compañía Dominicana de Teléfonos S. A. and ALTICE DOMINICANA S.A. together account for 97% of failure volume from this country. Concentration in a small number of networks suggests targeted infrastructure rather than diffuse compromise.
Failure Activity Over Time
Peak activity was observed in the week of July 13, 2026 with 4 failures recorded. Activity in the most recent 30-day window increased sharply compared with the prior period (4 vs 0 failures).
Regional Context
Compared with peer geographies in Caribbean, Dominican Republic's failure volume is above the regional median. Countries in this region collectively contributed 0% of failures observed.
Failures
Showing 1-10 of 11 failures, affecting 32 messages| Date ▼ | Source IP | Country | City | Network | Messages |
|---|---|---|---|---|---|
| 7/18/2026 | DO Dominican Republic | Santo Domingo | 4 | ||
| 10/3/2025 | DO Dominican Republic | Santiago de los Caballeros | 4 | ||
| 7/7/2025 | DO Dominican Republic | Santo Domingo | 1 | ||
| 7/3/2025 | DO Dominican Republic | Santo Domingo | 1 | ||
| 7/2/2025 | DO Dominican Republic | Santo Domingo | 4 | ||
| 6/16/2025 | DO Dominican Republic | Baní | 4 | ||
| 4/5/2025 | DO Dominican Republic | Santo Domingo | 4 | ||
| 4/4/2025 | DO Dominican Republic | Santo Domingo | 4 | ||
| 4/4/2025 | DO Dominican Republic | Santo Domingo | 4 | ||
| 7/1/2024 | DO Dominican Republic | Santo Domingo | 1 |
What This Means
Country-level patterns don't imply that mail from Dominican Republic 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.