| Date | IP Address |
| 2019-03-05 | 80.237.133.194 (ClassC) |
| 2024-11-05 | 5.35.226.194 (ClassC) |
| 2026-02-05 | 92.205.251.131 (ClassC) |
| Date | Domain | IP |
| mta-sts.mx0.heinrich-ellermann.de | 2025-11-07 | 92.205.251.131 |
| smtp1.heinrich-ellermann.de | 2025-10-16 | 92.205.251.131 |
| server2.heinrich-ellermann.de | 2025-10-22 | 92.205.251.131 |
| ns2.heinrich-ellermann.de | 2025-10-15 | 92.205.251.131 |
| mail5.heinrich-ellermann.de | 2025-10-16 | 92.205.251.131 |
| email.heinrich-ellermann.de | 2025-12-11 | 92.205.251.131 |
| imap.heinrich-ellermann.de | 2025-10-15 | 92.205.251.131 |
| wordpress.heinrich-ellermann.de | 2025-10-15 | 92.205.251.131 |
| mx.heinrich-ellermann.de | 2025-10-17 | 92.205.251.131 |