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

IP Address: 2a01:111:f403:c105::5

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-northcentralusazlp170120005.outbound.protection.outlook.com
Last updated: 2/5/2026
Failures Detected from this IP
Showing 1-50 of 83 (failures, affecting 295 messages)
Date ▼ Messages
1/30/2026 2
1/29/2026 1
1/28/2026 1
1/27/2026 1
1/15/2026 1
1/14/2026 1
1/8/2026 3
1/7/2026 4
1/6/2026 2
12/19/2025 4
12/18/2025 1
12/17/2025 6
12/16/2025 1
12/13/2025 1
12/12/2025 3
12/11/2025 2
12/10/2025 5
12/6/2025 1
12/5/2025 4
12/4/2025 3
12/3/2025 5
12/2/2025 4
11/22/2025 1
11/21/2025 3
11/20/2025 2
11/19/2025 17
11/18/2025 1
11/15/2025 2
11/14/2025 3
11/13/2025 2
11/12/2025 1
10/21/2025 2
10/11/2025 1
10/10/2025 6
10/9/2025 1
10/8/2025 12
10/7/2025 2
10/4/2025 1
10/3/2025 14
10/2/2025 8
10/1/2025 10
9/30/2025 2
9/27/2025 3
9/26/2025 24
9/25/2025 1
9/24/2025 21
9/23/2025 2
9/20/2025 3
9/19/2025 11
9/18/2025 8