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

Network: ES-SBT-20120607

This page shows DMARC authentication failures originating from the ES-SBT-20120607 network. Learn more about this data.

Network Information
WHOIS Owner:
ORG-SBTS3-RIPE
Countries:
ES
Unique IPs:
2
CIDR:
5.61.203.0/24

Analysis

This network has contributed 2 unique IP addresses across 2 failed authentication events, accounting for 4 messages. Activity spans from June 17, 2026 to July 24, 2026, with peak volume in June 2026 (1 event). The top countries by failure volume are Spain (100%). The most active source IPs from this network include 5.61.203.10 (1 failure), 5.61.203.7 (1 failure). Failures from ES-SBT-20120607 are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.

Failures Detected from this Network
Showing 1-2 of 2 failures, affecting 4 messages
Countries