| Date | IP Address |
| 2021-01-20 | 52.4.175.111 (ClassC) |
| 2024-09-09 | 52.5.181.79 (ClassC) |
| 2024-10-05 | 52.4.225.124 (ClassC) |
| 2025-01-03 | 52.6.46.142 (ClassC) |
| 2025-01-12 | 52.4.240.221 (ClassC) |
| 2025-04-09 | 52.4.38.70 (ClassC) |
| Date | Domain | IP |
| authsmtp.edsteinink.com | 2024-07-13 | 52.4.38.70 |
| a.mx.edsteinink.com | 2024-09-09 | 52.5.181.79 |