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

Network: EVMS

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

Network Information
Org ID:
EVMS
Address:
Academic Computer Center Lewis Hall P.O. Box 1980, Norfolk, VA 23501
Countries:
US
Unique IPs:
4
CIDR:
157.21.0.0/16

Analysis

This network has contributed 4 unique IP addresses across 7 failed authentication events, accounting for 14 messages. Activity spans from February 14, 2025 to July 9, 2025, with peak volume in July 2025 (5 events). The top countries by failure volume are United States (100%). The most active source IPs from this network include 157.21.201.10 (4 failures), 157.21.201.12 (2 failures), 157.21.201.9 (2 failures). Failures from EVMS are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.

Failures Detected from this Network
Showing 1-7 of 7 failures, affecting 14 messages
Countries