| Date | IP Address |
| 2026-03-04 | 148.251.90.173 (ClassC) |
| Date | Domain | IP |
| ns1.school4u.com | 2026-03-04 | 148.251.90.173 |
| mx1.school4u.com | 2026-03-04 | 148.251.90.173 |
| relay1.school4u.com | 2026-03-04 | 148.251.90.173 |
| mail02.school4u.com | 2026-03-04 | 148.251.90.173 |
| mail9.school4u.com | 2026-03-04 | 148.251.90.173 |
| ipe.school4u.com | 2026-03-04 | 148.251.90.173 |
| imap.school4u.com | 2026-03-04 | 148.251.90.173 |
| hermes.school4u.com | 2026-03-04 | 148.251.90.173 |
| ms.school4u.com | 2026-03-04 | 148.251.90.173 |
| intranet.school4u.com | 2026-03-04 | 148.251.90.173 |
| root.school4u.com | 2026-03-04 | 148.251.90.173 |
| mbox.school4u.com | 2026-03-04 | 148.251.90.173 |