| Date | IP Address |
| 2021-01-13 | 14.29.40.12 (ClassC) |
| 2021-01-13 | 14.29.40.8 (ClassC) |
| 2024-09-24 | 58.218.215.152 (ClassC) |
| 2025-03-30 | 180.163.146.101 (ClassC) |
| 2025-04-14 | 61.160.192.98 (ClassC) |
| 2026-01-19 | 180.163.146.111 (ClassC) |
| 2026-02-14 | 180.163.146.41 (ClassC) |
| Date | Domain | IP |
| auth.upmcn.com | 2024-11-29 | 116.77.74.118 |
| smtpseguro.upmcn.com | 2024-09-24 | 58.218.215.152 |
| authsmtp.upmcn.com | 2024-12-11 | 58.218.215.152 |