| Date | IP Address |
| 2021-03-10 | 85.13.148.130 (ClassC) |
| 2026-02-08 | 85.13.132.253 (ClassC) |
| Date | Domain | IP |
| mail1.proskegroup.com | 2025-08-06 | 85.13.132.253 |
| relay1.proskegroup.com | 2025-08-14 | 85.13.132.253 |
| mx2.proskegroup.com | 2025-07-29 | 85.13.132.253 |
| mx7.proskegroup.com | 2025-08-01 | 85.13.132.253 |
| smtpauth.proskegroup.com | 2025-11-19 | 85.13.132.253 |
| m.proskegroup.com | 2025-08-23 | 85.13.132.253 |
| postmaster.proskegroup.com | 2025-08-16 | 85.13.132.253 |
| mailserver.proskegroup.com | 2026-02-08 | 85.13.132.253 |
| host.proskegroup.com | 2025-08-25 | 85.13.132.253 |
| mailx.proskegroup.com | 2025-07-30 | 85.13.132.253 |
| a.mx.proskegroup.com | 2025-11-24 | 85.13.132.253 |