| Date | IP Address |
| 2015-03-19 | 54.230.91.234 (ClassC) |
| 2015-03-25 | 54.192.90.59 (ClassC) |
| 2015-04-15 | 54.239.132.59 (ClassC) |
| 2015-06-09 | 54.230.88.10 (ClassC) |
| 2024-05-12 | 99.84.66.111 (ClassC) |
| 2024-09-03 | 99.84.66.107 (ClassC) |
| 2024-12-23 | 52.84.162.51 (ClassC) |
| 2025-01-01 | 99.84.66.34 (ClassC) |
| Date | Domain | IP |
| blog.mailup.com | 2025-01-01 | 162.159.134.42 |
| static-cdn.mailup.com | 2015-03-25 | 54.192.90.59 |
| login.mailup.com | 2024-07-11 | 18.161.6.36 |
| webinar.mailup.com | 2024-10-04 | 52.214.164.36 |
| es.mailup.com | 2025-01-01 | 93.174.65.83 |
| landings.mailup.com | 2024-07-21 | 54.171.31.76 |
| www.mailup.com | 2024-06-18 | 51.195.79.252 |