| Date | IP Address |
| 2021-01-26 | 35.213.146.79 (ClassC) |
| 2026-02-24 | 213.188.193.176 (ClassC) |
| Date | Domain | IP |
| mail1.osof.org | 2026-02-24 | 213.188.193.176 |
| mx1.osof.org | 2026-02-24 | 213.188.193.176 |
| mail5.osof.org | 2026-02-24 | 213.188.193.176 |
| mta.osof.org | 2026-02-24 | 213.188.193.176 |
| exchange.osof.org | 2026-02-24 | 213.188.193.176 |
| m.osof.org | 2026-02-24 | 213.188.193.176 |
| mailer.osof.org | 2026-02-24 | 213.188.193.176 |
| server.osof.org | 2026-02-24 | 213.188.193.176 |
| mailhost.osof.org | 2026-02-24 | 213.188.193.176 |
| ww.osof.org | 2026-02-24 | 213.188.193.176 |
| mx.osof.org | 2026-02-24 | 213.188.193.176 |
| mbox.osof.org | 2026-02-24 | 213.188.193.176 |