| Date | IP Address |
| 2015-04-16 | 54.208.78.137 (ClassC) |
| 2017-05-16 | 52.44.142.167 (ClassC) |
| 2019-07-23 | 52.3.193.16 (ClassC) |
| 2024-01-13 | 184.72.134.10 (ClassC) |
| 2024-08-06 | 23.20.213.143 (ClassC) |
| 2024-11-06 | 44.206.59.196 (ClassC) |
| 2025-04-28 | 52.203.245.233 (ClassC) |
| 2025-08-10 | 54.159.14.11 (ClassC) |
| 2025-09-05 | 34.205.219.100 (ClassC) |
| 2025-09-25 | 34.194.246.120 (ClassC) |
| 2025-11-29 | 34.225.246.35 (ClassC) |
| 2025-12-20 | 44.207.9.26 (ClassC) |
| 2026-01-02 | 54.145.104.154 (ClassC) |
| 2026-01-21 | 54.172.65.12 (ClassC) |
| Date | Domain | IP |
| customer-service.mailcenter-alert.com | 2026-01-17 | 54.82.205.145 |
| voicemail.ivanhoecambridge.mailcenter-alert.com | 2024-01-12 | 184.72.134.10 |
| deactivate.mailcenter-alert.com | 2025-04-23 | 44.217.122.173 |
| mail.mailcenter-alert.com | 2024-01-13 | 184.72.134.10 |
| mymail.mailcenter-alert.com | 2025-10-26 | 3.213.74.195 |
| login.mailcenter-alert.com | 2025-12-10 | 107.23.239.252 |
| confirmation.mailcenter-alert.com | 2025-10-19 | 35.171.39.251 |
| info.mailcenter-alert.com | 2025-08-18 | 35.170.136.206 |
| violations.mailcenter-alert.com | 2024-10-01 | 3.214.70.204 |
| oka-mak-prod1-t.mailcenter-alert.com | 2025-08-18 | 3.230.96.90 |
| www.mailcenter-alert.com | 2024-11-25 | 44.217.151.146 |