| Date | IP Address |
| 2019-07-21 | 52.9.213.139 (ClassC) |
| 2019-08-29 | 54.183.101.142 (ClassC) |
| 2020-01-19 | 13.57.132.171 (ClassC) |
| 2020-04-13 | 52.8.0.75 (ClassC) |
| 2020-07-22 | 52.9.81.213 (ClassC) |
| 2020-07-30 | 54.176.208.84 (ClassC) |
| 2020-08-04 | 52.53.40.4 (ClassC) |
| 2020-10-08 | 54.153.102.146 (ClassC) |
| 2020-11-15 | 52.52.153.14 (ClassC) |
| 2021-01-08 | 13.57.147.3 (ClassC) |
| 2022-04-18 | 52.8.53.190 (ClassC) |
| 2025-04-02 | 99.83.232.3 (ClassC) |
| 2025-09-11 | 75.2.86.53 (ClassC) |
| 2026-01-10 | 104.21.36.254 (ClassC) |
| Date | Domain | IP |
| mx10.rpg.org | 2025-05-05 | 99.83.232.3 |
| mx01.rpg.org | 2025-08-14 | 99.83.232.3 |
| exchange.rpg.org | 2025-03-22 | 99.83.232.3 |
| newmail.rpg.org | 2025-09-21 | 75.2.86.53 |
| mailer.rpg.org | 2025-11-21 | 75.2.86.53 |
| new.rpg.org | 2025-11-20 | 52.9.239.214 |
| www.rpg.org | 2025-04-02 | 99.83.232.3 |
| mailrelay.rpg.org | 2025-09-26 | 99.83.232.3 |