Sh4mefulIP Address: 149.72.55.168
Twilio SendGrid is a cloud-based Email Service Provider (ESP), or Mail Transfer Agent (MTA). It operates as a high-volume, cloud-based SMTP service to send, receive, and relay both transactional and marketing emails. These signals could be indicative of a failure during legitimate sends (through Sendgrid), or could be signal of a spam/spoof attempt using their service which is common enough we're not treating this as a confounder.
This page shows DMARC authentication failure data for this IP address. Learn more about this data.
Geolocation Information
- Country:
- US United States
- Coordinates:
- 37.751, -97.822
WHOIS Information
- Network Name:
- SENDGRID-149-72-0-0-16
- CIDR:
149.72.0.0/16- Owner:
- SendGrid, Inc.
- Org ID:
SENDG-12- Address:
- Twilio, Inc. 1801 California Street Suite 500, Denver, CO 80202
- Reverse DNS:
-
wrqvptxv.outbound-mail.sendgrid.net
Last updated: 2/5/2026
Analysis
This IP was observed on a single date: January 14, 2026. It has been associated with 1 failed authentication event affecting 1 message — a single isolated event. The IP belongs to SENDGRID-149-72-0-0-16 (SendGrid, Inc.), a email delivery service with activity associated with United States.
External Reputation Lookups
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