Shame on you, stupid spammers.. Sh4meful  DMARC Spoof Detection

Network: Grupo Fullsat SRL

This page shows DMARC authentication failures originating from the Grupo Fullsat SRL network. Learn more about this data.

Network Information
WHOIS Owner:
Grupo Fullsat SRL
Address:
1ro de Mayo, 3351,, 1828 - Buenos Aires -
Countries:
AR
Unique IPs:
1
CIDR:
138.59.140.0/22

Analysis

This network has contributed 1 unique IP address across 1 failed authentication event, accounting for 2 messages. Activity from this network was observed on July 25, 2026. The top countries by failure volume are Argentina (100%). The most active source IP from this network includes 138.59.140.158 (1 failure). A single IP dominates activity from Grupo Fullsat SRL, suggesting a concentrated or persistent source rather than distributed infrastructure.

Failures Detected from this Network
Showing 1-1 of 1 failures, affecting 2 messages
Countries