| Date | IP Address |
| 2021-02-17 | 89.188.79.173 (ClassC) |
| 2025-08-13 | 89.188.79.191 (ClassC) |
| Date | Domain | IP |
| mail10.nk.s.dk | 2025-07-03 | 89.188.79.191 |
| mx10.nk.s.dk | 2025-06-19 | 89.188.79.191 |
| smtp01.nk.s.dk | 2025-06-26 | 89.188.79.191 |
| imap1.nk.s.dk | 2025-08-13 | 89.188.79.191 |
| mx1.nk.s.dk | 2025-06-17 | 89.188.79.191 |
| relay1.nk.s.dk | 2025-05-28 | 89.188.79.191 |
| mail12.nk.s.dk | 2025-08-13 | 89.188.79.191 |
| mail2.nk.s.dk | 2025-06-22 | 89.188.79.191 |
| mx2.nk.s.dk | 2025-08-13 | 89.188.79.191 |
| smtp3.nk.s.dk | 2025-07-27 | 89.188.79.191 |
| mail6.nk.s.dk | 2025-07-05 | 89.188.79.191 |
| mail7.nk.s.dk | 2025-08-13 | 89.188.79.191 |
| mx7.nk.s.dk | 2025-07-07 | 89.188.79.191 |
| zimbra.nk.s.dk | 2025-07-22 | 89.188.79.191 |
| mta.nk.s.dk | 2025-06-24 | 89.188.79.191 |
| poczta.nk.s.dk | 2025-08-04 | 89.188.79.191 |
| comune.nk.s.dk | 2025-07-20 | 89.188.79.191 |
| mail.comune.nk.s.dk | 2025-07-14 | 89.188.79.191 |
| smtp.comune.nk.s.dk | 2025-06-18 | 89.188.79.191 |
| gate.nk.s.dk | 2025-08-11 | 89.188.79.191 |
| mailgate.nk.s.dk | 2025-05-26 | 89.188.79.191 |
| remote.nk.s.dk | 2025-07-06 | 89.188.79.191 |
| vmail.nk.s.dk | 2025-06-22 | 89.188.79.191 |
| m.nk.s.dk | 2025-07-18 | 89.188.79.191 |
| authsmtp.nk.s.dk | 2025-07-22 | 89.188.79.191 |
| mailer.nk.s.dk | 2025-08-01 | 89.188.79.191 |
| sniper.nk.s.dk | 2025-07-09 | 89.188.79.191 |
| postmaster.nk.s.dk | 2025-08-03 | 89.188.79.191 |
| mailserver.nk.s.dk | 2025-05-27 | 89.188.79.191 |
| host.nk.s.dk | 2025-06-28 | 89.188.79.191 |
| srv.nk.s.dk | 2025-07-12 | 89.188.79.191 |
| mailgw.nk.s.dk | 2025-07-02 | 89.188.79.191 |
| mailx.nk.s.dk | 2025-06-23 | 89.188.79.191 |
| mx.nk.s.dk | 2025-08-13 | 89.188.79.191 |
| a.mx.nk.s.dk | 2025-06-16 | 89.188.79.191 |
| mailbox.nk.s.dk | 2025-08-13 | 89.188.79.191 |