| Date | IP Address |
| 2021-03-24 | 85.13.137.9 (ClassC) |
| 2026-02-10 | 85.13.135.238 (ClassC) |
| Date | Domain | IP |
| mail11.ruhrbeat.com | 2026-02-09 | 85.13.135.238 |
| mail1.ruhrbeat.com | 2025-06-06 | 85.13.135.238 |
| imap1.ruhrbeat.com | 2026-02-09 | 85.13.135.238 |
| mail4.ruhrbeat.com | 2025-07-28 | 85.13.135.238 |
| mail5.ruhrbeat.com | 2026-02-10 | 85.13.135.238 |
| mail8.ruhrbeat.com | 2026-02-10 | 85.13.135.238 |
| home.ruhrbeat.com | 2026-01-12 | 85.13.135.238 |
| antispam.ruhrbeat.com | 2026-02-09 | 85.13.135.238 |
| correo.ruhrbeat.com | 2025-07-12 | 85.13.135.238 |
| imap.ruhrbeat.com | 2025-10-19 | 85.13.135.238 |
| ftp.ruhrbeat.com | 2025-10-07 | 85.13.135.238 |
| mailer.ruhrbeat.com | 2025-08-04 | 85.13.135.238 |
| clubbs.ruhrbeat.com | 2025-09-21 | 85.13.135.238 |
| hermes.ruhrbeat.com | 2025-10-21 | 85.13.135.238 |
| mailbox.ruhrbeat.com | 2025-09-08 | 85.13.135.238 |