| Date | IP Address |
| 2023-10-13 | 44.214.86.131 (ClassC) |
| 2024-08-10 | 3.229.65.171 (ClassC) |
| 2024-09-22 | 34.225.32.1 (ClassC) |
| 2025-01-12 | 52.4.228.52 (ClassC) |
| 2025-02-05 | 44.223.208.34 (ClassC) |
| Date | Domain | IP |
| mta-sts.mlr2.mailonline2.com | 2023-10-13 | 44.195.224.200 |
| mta-sts.mlr4.mailonline2.com | 2023-10-13 | 44.195.224.200 |
| mta-sts.mlr5.mailonline2.com | 2023-10-13 | 34.231.67.123 |
| www.mailonline2.com | 2023-10-13 | 44.195.224.200 |