| Date | IP Address |
| 2021-08-11 | 13.225.63.117 (ClassC) |
| 2022-04-18 | 13.227.40.74 (ClassC) |
| 2023-11-02 | 3.163.80.34 (ClassC) |
| 2024-06-09 | 99.84.66.86 (ClassC) |
| 2024-12-18 | 18.65.229.45 (ClassC) |
| 2024-12-26 | 18.65.229.110 (ClassC) |
| 2025-03-03 | 18.65.229.126 (ClassC) |
| 2025-03-12 | 18.65.229.129 (ClassC) |
| 2025-07-13 | 18.161.6.5 (ClassC) |
| 2025-07-17 | 18.161.6.75 (ClassC) |
| 2025-09-03 | 18.161.6.37 (ClassC) |
| 2025-09-14 | 3.169.173.54 (ClassC) |
| Date | Domain | IP |
| feature.backend.mailflow.dev | 2024-06-09 | 52.44.154.175 |
| develop.backend.mailflow.dev | 2024-06-09 | 34.206.41.96 |
| www.mailflow.dev | 2025-01-10 | 18.161.6.37 |