| Date | IP Address |
| 2018-11-29 | 54.229.122.196 (ClassC) |
| 2019-07-13 | 52.30.6.33 (ClassC) |
| 2020-12-19 | 54.76.81.225 (ClassC) |
| 2021-05-13 | 34.253.252.219 (ClassC) |
| 2023-11-11 | 52.50.46.114 (ClassC) |
| 2023-11-29 | 52.215.0.98 (ClassC) |
| 2024-02-08 | 52.209.215.169 (ClassC) |
| 2024-02-16 | 52.213.80.115 (ClassC) |
| 2024-02-25 | 18.200.175.229 (ClassC) |
| 2024-03-10 | 63.34.102.4 (ClassC) |
| 2025-07-14 | 99.83.252.2 (ClassC) |
| 2025-08-23 | 75.2.53.245 (ClassC) |
| Date | Domain | IP |
| smtp01.gun.cz | 2025-03-15 | 99.83.252.2 |