| Date | IP Address |
| 2016-01-14 | 88.86.107.212 (ClassC) |
| 2025-07-28 | 78.24.236.86 (ClassC) |
| 2026-02-06 | 193.105.158.197 (ClassC) |
| Date | Domain | IP |
| mail11.raj-ohlavek.cz | 2025-05-08 | 78.24.236.86 |
| exchange.raj-ohlavek.cz | 2025-08-29 | 78.24.236.86 |
| correo.raj-ohlavek.cz | 2025-05-26 | 78.24.236.86 |
| imap.raj-ohlavek.cz | 2025-05-26 | 78.24.236.86 |
| authsmtp.raj-ohlavek.cz | 2025-05-30 | 78.24.236.86 |
| hermes.raj-ohlavek.cz | 2025-05-27 | 78.24.236.86 |
| host.raj-ohlavek.cz | 2025-05-07 | 78.24.236.86 |
| www.raj-ohlavek.cz | 2025-07-31 | 78.24.236.86 |
| a.mx.raj-ohlavek.cz | 2025-07-16 | 78.24.236.86 |