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

IP Address: 2a01:111:f403:c105::1

The data here is from DMARC analysis for domains I administer, drawn from a larger dataset (comprising millions of authentication records and messages). These entries are from email attempts that failed both SPF and DKIM (and there are often alignment issues - hidden here). In many cases, these failures indicate unauthorized use of the domain name, and are commonly associated with spoofing, phishing, or other abusive mail activity.

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Geolocation Information
Country:
US United States
Region:
Illinois
City:
Chicago
Coordinates:
41.8835, -87.6305
WHOIS Information
Network Name:
UK-MICROSOFT-20060601
Owner:
ORG-MA42-RIPE
Reverse DNS:
mail-northcentralusazlp170100001.outbound.protection.outlook.com
Last updated: 2/5/2026
Failures Detected from this IP
Showing 51-79 of 79 (failures, affecting 294 messages)
Date ▲ Messages
10/24/2025 2
10/25/2025 2
11/12/2025 2
11/13/2025 1
11/14/2025 8
11/19/2025 10
11/20/2025 6
11/21/2025 10
12/2/2025 1
12/3/2025 8
12/4/2025 8
12/5/2025 8
12/6/2025 3
12/9/2025 1
12/10/2025 2
12/11/2025 1
12/12/2025 1
12/13/2025 1
12/17/2025 3
12/18/2025 4
12/19/2025 2
1/7/2026 6
1/8/2026 1
1/9/2026 1
1/14/2026 1
1/16/2026 1
1/28/2026 2
1/29/2026 1
1/30/2026 2