| Date | IP Address |
| 2021-02-07 | 37.200.100.13 (ClassC) |
| 2025-11-29 | 92.204.236.192 (ClassC) |
| Date | Domain | IP |
| poczta.euresa.reisen | 2025-10-14 | 92.204.236.192 |
| secure.euresa.reisen | 2025-10-15 | 92.204.236.192 |
| mailin.euresa.reisen | 2025-10-14 | 92.204.236.192 |
| mailhost.euresa.reisen | 2025-11-29 | 92.204.236.192 |
| mailx.euresa.reisen | 2025-09-24 | 92.204.236.192 |
| relay.euresa.reisen | 2025-10-29 | 92.204.236.192 |