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

Network: USI_ADSL_USERS

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

Network Information
WHOIS Owner:
Rostelecom networks
Countries:
RU
Unique IPs:
1
CIDR:
188.18.128.0/18

Analysis

This network has contributed 1 unique IP address across 1 failed authentication event, accounting for 1 message. Activity from this network was observed on June 24, 2026. The top countries by failure volume are Russia (100%). The most active source IP from this network includes 188.18.183.70 (1 failure). A single IP dominates activity from USI_ADSL_USERS, suggesting a concentrated or persistent source rather than distributed infrastructure.

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