| Date | IP Address |
| 2025-02-01 | 89.107.69.172 (ClassC) |
| Date | Domain | IP |
| mail01.duvence.de | 2025-02-01 | 89.107.69.172 |
| relay1.duvence.de | 2025-01-21 | 89.107.69.172 |
| mx02.duvence.de | 2025-01-17 | 89.107.69.172 |
| mail2.duvence.de | 2025-02-01 | 89.107.69.172 |
| smtp2.duvence.de | 2025-01-28 | 89.107.69.172 |
| mx3.duvence.de | 2025-01-15 | 89.107.69.172 |
| mx4.duvence.de | 2025-01-22 | 89.107.69.172 |
| zimbra.duvence.de | 2025-01-29 | 89.107.69.172 |
| exchange.duvence.de | 2025-01-23 | 89.107.69.172 |
| mailgate.duvence.de | 2025-02-01 | 89.107.69.172 |
| auth.duvence.de | 2025-02-01 | 89.107.69.172 |
| vmail.duvence.de | 2025-01-29 | 89.107.69.172 |
| admin.duvence.de | 2025-01-15 | 89.107.69.172 |
| correo.duvence.de | 2025-02-01 | 89.107.69.172 |
| authsmtp.duvence.de | 2025-01-16 | 89.107.69.172 |
| sniper.duvence.de | 2025-01-17 | 89.107.69.172 |
| mailserver.duvence.de | 2025-02-01 | 89.107.69.172 |
| www.duvence.de | 2025-02-01 | 89.107.69.172 |
| gateway.duvence.de | 2025-01-07 | 89.107.69.172 |
| my.duvence.de | 2025-01-15 | 89.107.69.172 |