| Date | IP Address |
| 2025-01-01 | 85.13.152.240 (ClassC) |
| Date | Domain | IP |
| exchange.giehl-tiefbau.de | 2024-09-25 | 85.13.152.240 |
| auth.giehl-tiefbau.de | 2024-10-19 | 85.13.152.240 |
| email.giehl-tiefbau.de | 2024-12-08 | 85.13.152.240 |
| antispam.giehl-tiefbau.de | 2024-09-25 | 85.13.152.240 |