| Date | IP Address |
| 2020-03-19 | 165.254.95.0 (ClassC) |
| 2020-06-24 | 184.51.3.160 (ClassC) |
| 2024-06-12 | 23.46.17.36 (ClassC) |
| 2024-11-25 | 104.70.127.22 (ClassC) |
| 2025-04-02 | 23.55.111.185 (ClassC) |
| 2025-04-15 | 23.46.228.173 (ClassC) |
| 2026-02-22 | 23.216.147.206 (ClassC) |
| Date | Domain | IP |
| beta.couriermailsit.com.au | 2024-02-23 | 23.41.4.24 |
| subscribe.couriermailsit.com.au | 2024-06-12 | 23.46.17.36 |
| origin.go.couriermailsit.com.au | 2025-09-13 | 192.0.66.99 |
| subscriptions.couriermailsit.com.au | 2024-11-25 | 23.46.17.43 |
| awssubscriptions.couriermailsit.com.au | 2025-06-28 | 204.246.191.108 |
| www.couriermailsit.com.au | 2025-01-27 | 23.54.35.95 |