| Date | IP Address |
| 2023-01-31 | 63.33.237.74 (ClassC) |
| 2025-06-09 | 18.202.192.165 (ClassC) |
| 2025-11-13 | 54.73.69.125 (ClassC) |
| 2026-01-24 | 52.214.164.36 (ClassC) |
| Date | Domain | IP |
| blog.mailup.com | 2026-01-06 | 162.159.134.42 |
| www.blog.mailup.com | 2025-09-09 | 162.159.134.42 |
| static-cdn.mailup.com | 2015-03-25 | 54.192.90.59 |
| login.mailup.com | 2025-03-15 | 18.161.6.81 |
| webinar.mailup.com | 2025-06-09 | 18.202.192.165 |
| es.mailup.com | 2025-09-09 | 93.174.65.83 |
| landings.mailup.com | 2024-07-21 | 54.171.31.76 |
| www.mailup.com | 2025-04-22 | 51.89.75.178 |