DMARC Spoof Detection, Bangladesh
Clear Clear FilterThis page shows DMARC authentication failures originating from Bangladesh. Learn more about this data.
Bangladesh accounts for 73 DMARC authentication failures observed by sh4meful over the observation window, sourced from 71 distinct IP addresses across 55 networks. This represents approximately 1.0% of total failure volume observed. Activity from Bangladesh has declined over the last 30 days compared with the prior 30-day period. The most active source is BBN-BD with 4 failures across 4 IP addresses.
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Top Networks in Bangladesh
Ten most active networks sourcing DMARC failures from Bangladesh:
| Network | Organization | Failures | Distinct IPs | Top City |
|---|---|---|---|---|
| BBN-BD | — | 4 | 4 | Dhaka |
| CITYONLINELTD-BD | — | 4 | 4 | Dhaka |
| surf | — | 2 | 1 | — |
| MOUMITAONLINE-BD | — | 4 | 4 | — |
| ksn-zone-D | — | 2 | 1 | — |
| AGNISYS | — | 2 | 2 | — |
| LEVEL3-USER | — | 1 | 1 | — |
| AJWAHNETWORK-BD | — | 1 | 1 | — |
| DHAKAINTERNET-BD | — | 1 | 1 | — |
| AMBERIT-BD | — | 2 | 2 | Dhaka |
BBN-BD and CITYONLINELTD-BD together account for 11% 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 27, 2026 with 26 failures recorded. Activity in the most recent 30-day window declined sharply compared with the prior period (0 vs 60 failures).
Regional Context
Compared with peer geographies in Southern Asia, Bangladesh's failure volume is above the regional median. Countries in this region collectively contributed 4% of failures observed.
Failures
Showing 1-10 of 73 failures, affecting 153 messages| Date ▼ | Source IP | Country | City | Network | Messages |
|---|---|---|---|---|---|
| 8/6/2026 | BD Bangladesh | 1 | |||
| 8/6/2026 | BD Bangladesh | Dhaka | 2 | ||
| 8/4/2026 | BD Bangladesh | Dhaka | 3 | ||
| 8/4/2026 | BD Bangladesh | 1 | |||
| 8/3/2026 | BD Bangladesh | Dhaka | 2 | ||
| 8/3/2026 | BD Bangladesh | Dhaka | 1 | ||
| 8/2/2026 | BD Bangladesh | 2 | |||
| 8/2/2026 | BD Bangladesh | 1 | |||
| 8/2/2026 | BD Bangladesh | 3 | |||
| 7/27/2026 | BD Bangladesh | Dhaka | 2 |
What This Means
Country-level patterns don't imply that mail from Bangladesh 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.