| Date | IP Address |
| 2021-03-25 | 65.8.48.156 (ClassC) |
| 2021-03-25 | 65.8.48.12 (ClassC) |
| 2021-03-25 | 65.8.48.122 (ClassC) |
| 2021-03-25 | 65.8.48.130 (ClassC) |
| 2024-12-22 | 3.165.166.76 (ClassC) |
| 2025-01-21 | 3.163.19.202 (ClassC) |
| 2025-05-08 | 3.165.166.216 (ClassC) |
| 2025-05-20 | 3.165.166.108 (ClassC) |
| 2025-05-24 | 3.165.166.49 (ClassC) |
| 2025-08-10 | 3.175.29.156 (ClassC) |
| Date | Domain | IP |
| smtp3.union-harbor.com | 2024-12-22 | 3.165.166.108 |
| barracuda.union-harbor.com | 2024-12-22 | 3.163.19.123 |
| gate.union-harbor.com | 2024-01-06 | 3.163.19.196 |
| mail.union-harbor.com | 2024-12-22 | 3.165.166.76 |
| spam.union-harbor.com | 2024-12-22 | 3.163.19.202 |
| correo.union-harbor.com | 2024-12-27 | 3.163.19.64 |
| authsmtp.union-harbor.com | 2025-01-23 | 3.163.19.123 |
| hostmaster.union-harbor.com | 2024-12-22 | 3.163.19.64 |
| www.union-harbor.com | 2025-01-23 | 3.163.19.64 |