DMARC Spoof Detection, Iran
Clear Clear FilterThis page shows DMARC authentication failures originating from Iran. Learn more about this data.
Iran accounts for 307 DMARC authentication failures observed by sh4meful over the observation window, sourced from 39 distinct IP addresses across 17 networks. This represents approximately 0.5% of total failure volume observed. Activity from Iran has declined over the last 30 days compared with the prior 30-day period. The most active source is spaceshipnetworks with 213 failures across 14 IP addresses.
307
39
17
471
Top Networks in Iran
Ten most active networks sourcing DMARC failures from Iran:
| Network | Organization | Failures | Distinct IPs | Top City |
|---|---|---|---|---|
| spaceshipnetworks | — | 213 | 14 | Tehran |
| CloudiNow-Service-Cloud | — | 28 | 1 | — |
| VUNIFY-NETWORK | — | 9 | 1 | — |
| IR-LORDVPS7-20240220 | — | 4 | 2 | — |
| Mashhad-Users | — | 2 | 2 | Mashhad |
| RIPE | — | 1 | 1 | Kermanshah |
| IR-Nazhin | — | 2 | 2 | — |
| IR-LORDVPS11-20240618 | — | 2 | 1 | — |
| wcd | — | 2 | 1 | — |
| IR-PARVARESH-20051129 | — | 1 | 1 | — |
spaceshipnetworks and CloudiNow-Service-Cloud together account for 77% 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 June 1, 2026 with 8 failures recorded. Activity in the most recent 30-day window declined sharply compared with the prior period (5 vs 17 failures).
Regional Context
Compared with peer geographies in Western Asia, Iran's failure volume is above the regional median. Countries in this region collectively contributed 1% of failures observed.
Failures
Showing 111-120 of 307 failures, affecting 471 messages| Date ▼ | Source IP | Country | City | Network | Messages |
|---|---|---|---|---|---|
| 12/1/2025 | IR Iran | Tehran | 1 | ||
| 11/29/2025 | IR Iran | Tehran | 1 | ||
| 11/28/2025 | IR Iran | Tehran | 1 | ||
| 11/27/2025 | IR Iran | Tehran | 1 | ||
| 11/27/2025 | IR Iran | Tehran | 1 | ||
| 11/26/2025 | IR Iran | Tehran | 1 | ||
| 11/26/2025 | IR Iran | Tehran | 1 | ||
| 11/24/2025 | IR Iran | Tehran | 1 | ||
| 11/24/2025 | IR Iran | Tehran | 1 | ||
| 11/23/2025 | IR Iran | Tehran | 1 |
What This Means
Country-level patterns don't imply that mail from Iran 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.