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

IP Address: 167.89.40.80

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.xtrwnvrh.outbound-mail.sendgrid.net
Last updated: 2/5/2026
Failures Detected from this IP
Showing 1-24 of 24 (failures, affecting 284 messages)
Date â–¼ Messages
9/5/2025 1
8/1/2025 1
7/3/2025 1
6/26/2025 1
6/19/2025 13
6/18/2025 4
6/6/2025 5
5/16/2025 6
5/7/2025 17
4/30/2025 13
4/18/2025 4
3/29/2025 1
3/28/2025 3
3/19/2025 3
3/14/2025 1
3/12/2025 6
2/28/2025 21
2/26/2025 82
2/14/2025 73
1/17/2025 10
1/8/2025 11
12/4/2024 5
9/12/2024 1
6/12/2024 1