DMARC Spoof Detection, Thailand
Clear Clear FilterThis page shows DMARC authentication failures originating from Thailand. Learn more about this data.
Thailand accounts for 5 DMARC authentication failures observed by sh4meful over the observation window, sourced from 5 distinct IP addresses across 5 networks. This represents approximately 0.0% of total failure volume observed. Activity from Thailand has increased over the last 30 days compared with the prior 30-day period. The most active source is Sheraton-Pattaya-Hotel with 1 failures across 1 IP address.
5
5
5
9
Top Networks in Thailand
Ten most active networks sourcing DMARC failures from Thailand:
| Network | Organization | Failures | Distinct IPs | Top City |
|---|---|---|---|---|
| Sheraton-Pattaya-Hotel | — | 1 | 1 | — |
| TH-AIS-Fibre | — | 1 | 1 | Bangkok |
| TOTNET | — | 1 | 1 | Bangkok |
| SanguanWongseIndustriesKoratInternet-by-AWN | — | 1 | 1 | — |
| TRUENET-CM | — | 1 | 1 | Chiang Mai |
Sheraton-Pattaya-Hotel and TH-AIS-Fibre together account for 56% 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 20, 2026 with 3 failures recorded. Activity in the most recent 30-day window increased sharply compared with the prior period (3 vs 1 failures).
Regional Context
Compared with peer geographies in South-Eastern Asia, Thailand's failure volume is below the regional median. Countries in this region collectively contributed 0% of failures observed.
Failures
Showing 1-5 of 5 failures, affecting 9 messages| Date ▼ | Source IP | Country | City | Network | Messages |
|---|---|---|---|---|---|
| 7/23/2026 | TH Thailand | Bangkok | 2 | ||
| 7/20/2026 | TH Thailand | Chiang Mai | 1 | ||
| 6/17/2026 | TH Thailand | 1 | |||
| 9/17/2025 | TH Thailand | 3 | |||
| 6/30/2024 | TH Thailand | Bangkok | 2 |
What This Means
Country-level patterns don't imply that mail from Thailand 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.