| Date | IP Address |
| 2025-03-23 | 85.25.1.16 (ClassC) |
| Date | Domain | IP |
| mail.sicherheitsakademie-steiner.com | 2024-10-14 | 85.25.1.16 |
| mta-sts.mail.sicherheitsakademie-steiner.com | 2025-03-23 | 85.25.1.16 |
| smtp.sicherheitsakademie-steiner.com | 2025-03-23 | 85.25.1.16 |
| mailer.sicherheitsakademie-steiner.com | 2025-03-23 | 85.25.1.16 |
| out.sicherheitsakademie-steiner.com | 2025-03-23 | 85.25.1.16 |
| mx.sicherheitsakademie-steiner.com | 2025-03-23 | 85.25.1.16 |