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

IP Address: 167.89.20.171

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
Coordinates:
37.751, -97.822
WHOIS Information
Network Name:
SENDGRID-167-89-0-0-17
CIDR:
167.89.0.0/17
Reverse DNS:
s.xtrwkqxb.outbound-mail.sendgrid.net
Last updated: 2/5/2026
Failures Detected from this IP
Showing 1-26 of 26 (failures, affecting 303 messages)
Date â–² Messages
3/17/2024 1
9/13/2024 2
12/4/2024 5
1/8/2025 10
1/17/2025 9
2/14/2025 77
2/26/2025 86
2/28/2025 19
3/12/2025 6
3/14/2025 1
3/19/2025 2
3/28/2025 9
3/29/2025 1
4/18/2025 10
4/30/2025 8
5/1/2025 1
5/7/2025 23
5/16/2025 6
6/6/2025 5
6/18/2025 3
6/19/2025 14
9/3/2025 1
9/13/2025 1
9/17/2025 1
9/24/2025 1
12/8/2025 1