| Date | IP Address |
| 2020-12-01 | 52.6.235.5 (ClassC) |
| 2024-09-19 | 54.165.96.145 (ClassC) |
| 2024-11-25 | 54.208.81.82 (ClassC) |
| 2024-12-22 | 44.215.92.231 (ClassC) |
| 2025-04-10 | 52.205.127.109 (ClassC) |
| 2025-05-03 | 3.94.228.155 (ClassC) |
| 2025-07-12 | 3.208.238.87 (ClassC) |
| 2025-07-31 | 34.226.71.39 (ClassC) |
| 2025-08-19 | 18.209.41.145 (ClassC) |
| 2025-09-02 | 34.193.147.50 (ClassC) |
| 2025-09-06 | 3.224.37.111 (ClassC) |
| 2026-01-24 | 100.30.139.113 (ClassC) |
| Date | Domain | IP |
| mail11.building-files.com | 2024-07-27 | 54.152.215.42 |
| server1.building-files.com | 2024-08-18 | 52.86.86.21 |
| mx1.building-files.com | 2024-09-03 | 54.164.66.214 |
| mail02.building-files.com | 2024-09-26 | 54.162.153.99 |
| ns2.building-files.com | 2024-09-08 | 52.73.237.112 |
| mail5.building-files.com | 2024-08-07 | 54.163.86.153 |
| home.building-files.com | 2024-09-06 | 52.73.15.68 |
| comune.building-files.com | 2024-09-14 | 52.87.93.61 |
| mail.comune.building-files.com | 2024-09-19 | 54.165.96.145 |
| gate.building-files.com | 2024-09-16 | 54.197.244.216 |
| email.building-files.com | 2024-09-09 | 54.174.185.134 |
| outmail.building-files.com | 2024-09-18 | 54.161.181.38 |
| zmail.building-files.com | 2024-09-20 | 54.165.96.145 |
| spam.building-files.com | 2024-08-28 | 54.146.3.211 |
| mxs.building-files.com | 2024-08-07 | 54.163.86.153 |