DMARC Spoof Detection, Mexico
Clear Clear FilterThis page shows DMARC authentication failures originating from Mexico. Learn more about this data.
Mexico accounts for 28 DMARC authentication failures observed by sh4meful over the observation window, sourced from 28 distinct IP addresses across 15 networks. This represents approximately 0.1% of total failure volume observed. Activity from Mexico has declined over the last 30 days compared with the prior 30-day period. The most active source is Cablevisión, S.A. de C.V. with 8 failures across 8 IP addresses.
28
28
15
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Top Networks in Mexico
Ten most active networks sourcing DMARC failures from Mexico:
| Network | Organization | Failures | Distinct IPs | Top City |
|---|---|---|---|---|
| Cablevisión, S.A. de C.V. | — | 8 | 8 | Tlalpan |
| Television Internacional, S.A. de C.V. | — | 3 | 3 | Ciudad Benito Juárez |
| OPSICOME SA DE CV | — | 2 | 2 | Culiacán |
| Operbes, S.A. de C.V. | — | 2 | 2 | Ciudad Juárez |
| ALTAN REDES, S.A.P.I. de C. V. | — | 1 | 1 | Miguel Hidalgo |
| CEDSAMOVIL SA DE CV | — | 1 | 1 | Lerdo |
| NET-38-65-168-0-1 | — | 1 | 1 | Juventino Rosas |
| Victor alonzo chavez vega | — | 1 | 1 | Huaniqueo de Morales |
| UNINET | — | 1 | 1 | — |
| IENTC-CGNT-NET-1 | — | 2 | 2 | Silao |
Cablevisión, S.A. de C.V. and Television Internacional, S.A. de C.V. together account for 39% of failure volume from this country. Distribution across many networks is consistent with commodity spoofing infrastructure operating from this geography.
Failure Activity Over Time
Peak activity was observed in the week of July 13, 2026 with 9 failures recorded. Activity in the most recent 30-day window declined sharply compared with the prior period (2 vs 14 failures).
Regional Context
Compared with peer geographies in Central America, Mexico's failure volume is above the regional median. Countries in this region collectively contributed 0% of failures observed.
Failures
Showing 21-28 of 28 failures, affecting 70 messages| Date ▲ | Source IP | Country | City | Network | Messages |
|---|---|---|---|---|---|
| 6/23/2026 | MX Mexico | 3 | |||
| 6/29/2026 | MX Mexico | Gustavo Adolfo Madero | 1 | ||
| 7/17/2026 | MX Mexico | Silao | 1 | ||
| 7/17/2026 | MX Mexico | Lerdo | 4 | ||
| 7/18/2026 | MX Mexico | Álvaro Obregón | N/A | 4 | |
| 7/26/2026 | MX Mexico | Culiacán | 3 | ||
| 7/26/2026 | MX Mexico | Francisco I. Madero Municipality | 2 | ||
| 8/6/2026 | MX Mexico | Culiacán | 2 |
What This Means
Country-level patterns don't imply that mail from Mexico 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.