| Date | IP Address |
| 2021-01-18 | 89.188.79.173 (ClassC) |
| 2024-12-30 | 89.188.79.191 (ClassC) |
| Date | Domain | IP |
| mx10.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| smtp01.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| imap1.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| mx1.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| mail12.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| mx2.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| smtp3.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| mail6.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| mail7.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| mx7.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| zimbra.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| poczta.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| comune.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| mail.comune.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| smtp.comune.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| gate.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| mailgate.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| m.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| mailer.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| sniper.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| postmaster.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| mailserver.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| host.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| srv.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| mailgw.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| mailx.nk.s.dk | 2024-10-31 | 89.188.79.191 |
| mx.nk.s.dk | 2024-12-30 | 89.188.79.191 |
| a.mx.nk.s.dk | 2024-10-31 | 89.188.79.191 |