DMARC Spoof Detection, Taiwan
Clear Clear FilterThis page shows DMARC authentication failures originating from Taiwan. Learn more about this data.
Taiwan accounts for 61 DMARC authentication failures observed by sh4meful over the observation window, sourced from 33 distinct IP addresses across 11 networks. This represents approximately 0.1% of total failure volume observed. Activity from Taiwan has declined over the last 30 days compared with the prior 30-day period. The most active source is HINET-NET with 22 failures across 7 IP addresses.
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Top Networks in Taiwan
Ten most active networks sourcing DMARC failures from Taiwan:
| Network | Organization | Failures | Distinct IPs | Top City |
|---|---|---|---|---|
| HINET-NET | — | 22 | 7 | Taipei |
| GOOGLE-CLOUD | 12 | 12 | Taipei | |
| T-FGU.EDU.TW-NET | — | 9 | 2 | Taipei |
| KBRO-NET | — | 1 | 1 | Taichung |
| GOOGL-2 | 5 | 5 | Taipei | |
| T-NTHU.EDU.TW-NET | — | 1 | 1 | Hsinchu |
| T-EDU.TW-NET | — | 4 | 1 | — |
| TFN-NET | — | 1 | 1 | New Taipei City |
| T-NCHC.ORG.TW-NET | — | 3 | 1 | Hsinchu |
| T-NCU.EDU.TW-NET | — | 2 | 1 | Zhongli District |
HINET-NET and Google together account for 49% 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 June 15, 2026 with 9 failures recorded. Activity in the most recent 30-day window declined sharply compared with the prior period (0 vs 1 failures).
Regional Context
Compared with peer geographies in Eastern Asia, Taiwan's failure volume is below the regional median. Countries in this region collectively contributed 1% of failures observed.
Failures
Showing 1-10 of 61 failures, affecting 86 messages| Date ▼ | Source IP | Country | City | Network | Messages |
|---|---|---|---|---|---|
| 7/22/2026 | TW Taiwan | Taichung | 1 | ||
| 7/2/2026 | TW Taiwan | Taipei | 1 | ||
| 7/1/2026 | TW Taiwan | Taipei | 3 | ||
| 7/1/2026 | TW Taiwan | Taipei | 1 | ||
| 6/30/2026 | TW Taiwan | Taipei | 2 | ||
| 6/30/2026 | TW Taiwan | Taipei | 1 | ||
| 6/25/2026 | TW Taiwan | Taipei | 1 | ||
| 6/25/2026 | TW Taiwan | Taipei | 1 | ||
| 6/19/2026 | TW Taiwan | Taipei | 2 | ||
| 6/19/2026 | TW Taiwan | Taipei | 1 |
What This Means
Country-level patterns don't imply that mail from Taiwan 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.