Sh4mefulNetwork: TWILI-11
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 failures originating from the TWILI-11 network. Learn more about this data.
Analysis
This network has contributed 10 unique IP addresses across 94 failed authentication events, accounting for 1,577 messages. Activity from this network spans from March 6, 2024 to September 30, 2025. Activity from TWILI-11 (Twilio) has been observed from United States.
Failures Detected from this Network
Showing 1-50 of 94 (failures, affecting 1,577 messages)| Date âŧ | Source IP | Country | Messages |
|---|---|---|---|
| 9/30/2025 | US | 1 | |
| 9/26/2025 | US | 1 | |
| 9/25/2025 | US | 1 | |
| 9/24/2025 | US | 1 | |
| 9/23/2025 | US | 1 | |
| 9/11/2025 | US | 1 | |
| 9/9/2025 | US | 1 | |
| 9/3/2025 | US | 1 | |
| 8/22/2025 | US | 1 | |
| 8/6/2025 | US | 1 | |
| 7/23/2025 | US | 1 | |
| 6/26/2025 | US | 2 | |
| 6/26/2025 | US | 1 | |
| 6/25/2025 | US | 1 | |
| 6/19/2025 | US | 9 | |
| 6/19/2025 | US | 9 | |
| 6/19/2025 | US | 4 | |
| 6/18/2025 | US | 1 | |
| 6/18/2025 | US | 2 | |
| 6/6/2025 | US | 3 | |
| 6/6/2025 | US | 2 | |
| 6/3/2025 | US | 1 | |
| 5/23/2025 | US | 1 | |
| 5/23/2025 | US | 3 | |
| 5/16/2025 | US | 4 | |
| 5/16/2025 | US | 2 | |
| 5/13/2025 | US | 1 | |
| 5/7/2025 | US | 18 | |
| 5/7/2025 | US | 15 | |
| 5/1/2025 | US | 2 | |
| 4/30/2025 | US | 3 | |
| 4/30/2025 | US | 5 | |
| 4/18/2025 | US | 12 | |
| 4/18/2025 | US | 11 | |
| 3/28/2025 | US | 12 | |
| 3/28/2025 | US | 14 | |
| 3/26/2025 | US | 1 | |
| 3/26/2025 | US | 2 | |
| 3/19/2025 | US | 8 | |
| 3/19/2025 | US | 3 | |
| 3/14/2025 | US | 1 | |
| 3/14/2025 | US | 1 | |
| 3/12/2025 | US | 5 | |
| 3/12/2025 | US | 7 | |
| 2/28/2025 | US | 27 | |
| 2/28/2025 | US | 24 | |
| 2/26/2025 | US | 95 | |
| 2/26/2025 | US | 89 | |
| 2/14/2025 | US | 56 | |
| 2/14/2025 | US | 65 |