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

Network: GCS_SER-NET

This page shows DMARC authentication failures originating from the GCS_SER-NET network. Learn more about this data.

Network Information
WHOIS Owner:
ORG-GCSL7-RIPE
Countries:
GR US
Unique IPs:
2
CIDRs:
185.143.223.0/24, 185.39.207.0/24

Analysis

This network has contributed 2 unique IP addresses across 2 failed authentication events, accounting for 2 messages. Activity spans from September 12, 2025 to September 29, 2025, with peak volume in September 2025 (2 events). The top countries by failure volume are Greece (50%), United States (50%). The most active source IPs from this network include 185.143.223.93 (1 failure), 185.39.207.43 (1 failure). Failures from GCS_SER-NET are concentrated in two countries, which may indicate a targeted campaign or regionally hosted infrastructure.

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