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

IP Address: 18.220.165.7

This page shows DMARC authentication failure data for this IP address. Learn more about this data.

Geolocation Information
Country:
US United States
Region:
Ohio
City:
Columbus
Coordinates:
39.9625, -83.0061
WHOIS Information
Network Name:
AT-88-Z
CIDR:
18.128.0.0/9, 18.32.0.0/11, 18.64.0.0/10
Owner:
Amazon Technologies Inc.
Org ID:
AT-88-Z
Address:
410 Terry Ave N., Seattle, WA 98109
Reverse DNS:
cpmail.opticsplanet.com
Last updated: 2/5/2026

Analysis

This IP was first observed on July 10, 2025 and most recently on September 3, 2025. It has been associated with 2 failed authentication events affecting 2 messages, representing low but recurring activity. The IP belongs to AT-88-Z (Amazon Technologies Inc.), a network with activity associated with United States.

Failures Detected from this IP
Showing 1-2 of 2 failures, affecting 2 messages
Date โ–ผ Messages
9/3/2025 1
7/10/2025 1
External Reputation Lookups

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