| Date | IP Address |
| 2021-01-13 | 192.237.143.25 (ClassC) |
| 2026-01-07 | 161.35.250.144 (ClassC) |
| Date | Domain | IP |
| mx20.bldhd.org | 2025-09-20 | 161.35.250.144 |
| smtp01.bldhd.org | 2025-12-20 | 161.35.250.144 |
| mail11.bldhd.org | 2025-08-05 | 161.35.250.144 |
| smtp1.bldhd.org | 2025-12-04 | 161.35.250.144 |
| ms1.bldhd.org | 2025-08-06 | 161.35.250.144 |
| mx1.bldhd.org | 2025-11-13 | 161.35.250.144 |
| mail12.bldhd.org | 2025-08-06 | 161.35.250.144 |
| smtp2.bldhd.org | 2025-04-18 | 161.35.250.144 |
| mx4.bldhd.org | 2025-08-11 | 161.35.250.144 |
| poczta.bldhd.org | 2025-11-17 | 161.35.250.144 |
| exchange.bldhd.org | 2025-12-26 | 161.35.250.144 |
| mailgate.bldhd.org | 2025-12-30 | 161.35.250.144 |
| webmail.bldhd.org | 2026-01-07 | 161.35.250.144 |
| vmail.bldhd.org | 2025-12-10 | 161.35.250.144 |
| antispam.bldhd.org | 2025-08-06 | 161.35.250.144 |
| postmaster.bldhd.org | 2026-01-07 | 161.35.250.144 |
| mailserver.bldhd.org | 2025-08-05 | 161.35.250.144 |
| mxs.bldhd.org | 2025-12-18 | 161.35.250.144 |
| mailhost.bldhd.org | 2025-08-06 | 161.35.250.144 |
| srv.bldhd.org | 2025-08-06 | 161.35.250.144 |
| www.bldhd.org | 2025-08-06 | 161.35.250.144 |
| mailx.bldhd.org | 2025-09-10 | 161.35.250.144 |
| mx.bldhd.org | 2024-02-22 | 174.138.116.167 |
| a.mx.bldhd.org | 2025-07-27 | 161.35.250.144 |
| gateway.bldhd.org | 2025-09-23 | 161.35.250.144 |