| Date | IP Address |
| 2026-02-18 | 172.217.4.211 (ClassC) |
| Date | Domain | IP |
| mail10.cgcb.org | 2025-10-17 | 172.217.4.211 |
| mail01.cgcb.org | 2026-02-04 | 172.217.4.211 |
| mail1.cgcb.org | 2025-10-12 | 172.217.4.211 |
| smtp1.cgcb.org | 2025-10-11 | 172.217.4.211 |
| ns1.cgcb.org | 2025-10-12 | 172.217.4.211 |
| mx1.cgcb.org | 2025-10-12 | 172.217.4.211 |
| mx02.cgcb.org | 2026-02-07 | 172.217.4.211 |
| mail2.cgcb.org | 2026-02-18 | 172.217.4.211 |
| relay2.cgcb.org | 2026-01-22 | 172.217.4.211 |
| mx4.cgcb.org | 2025-10-20 | 172.217.4.211 |
| mx5.cgcb.org | 2026-01-04 | 172.217.4.211 |
| remote.cgcb.org | 2025-10-12 | 172.217.4.211 |
| mail.cgcb.org | 2026-02-01 | 172.217.4.211 |
| email.cgcb.org | 2025-10-13 | 172.217.4.211 |
| outmail.cgcb.org | 2025-10-12 | 172.217.4.211 |
| m.cgcb.org | 2026-01-23 | 172.217.4.211 |
| correo.cgcb.org | 2025-10-12 | 172.217.4.211 |
| postmaster.cgcb.org | 2026-02-04 | 172.217.4.211 |
| mailserver.cgcb.org | 2026-01-30 | 172.217.4.211 |
| root.cgcb.org | 2026-02-10 | 172.217.4.211 |
| mailsrv.cgcb.org | 2025-10-12 | 172.217.4.211 |
| mailx.cgcb.org | 2025-10-18 | 172.217.4.211 |
| mbox.cgcb.org | 2026-01-31 | 172.217.4.211 |
| mailrelay.cgcb.org | 2025-10-12 | 172.217.4.211 |