| Date | IP Address |
| 2019-07-26 | 104.27.152.135 (ClassC) |
| 2024-04-06 | 172.67.179.18 (ClassC) |
| 2026-01-20 | 104.26.4.145 (ClassC) |
| 2026-02-03 | 104.26.5.145 (ClassC) |
| 2026-02-21 | 172.67.71.141 (ClassC) |
| Date | Domain | IP |
| objects.mailtop.app | 2024-04-06 | 104.21.48.59 |
| assets.mailtop.app | 2024-04-06 | 104.21.48.59 |
| account.mailtop.app | 2024-04-06 | 172.67.179.18 |