| Date | IP Address |
| 2026-02-07 | 172.81.224.189 (ClassC) |
| Date | Domain | IP |
| mx1.jskou.com | 2026-02-07 | 172.81.224.189 |
| mail3.jskou.com | 2025-11-23 | 172.81.224.189 |
| mx5.jskou.com | 2026-02-07 | 172.81.224.189 |
| fe.jskou.com | 2025-12-24 | 172.81.224.189 |
| remote.jskou.com | 2025-12-08 | 172.81.224.189 |
| csscl.jskou.com | 2026-02-07 | 172.81.224.189 |
| smtp.mail.jskou.com | 2026-02-07 | 172.81.224.189 |
| vmail.jskou.com | 2025-12-24 | 172.81.224.189 |
| mailin.jskou.com | 2025-11-22 | 172.81.224.189 |
| smtpseguro.jskou.com | 2025-11-19 | 172.81.224.189 |
| www.jskou.com | 2025-11-17 | 172.81.224.189 |
| mailbox.jskou.com | 2025-12-14 | 172.81.224.189 |