| Date | IP Address |
| 2021-02-26 | 65.36.162.210 (ClassC) |
| 2026-03-04 | 64.141.147.182 (ClassC) |
| Date | Domain | IP |
| smtp01.graymetal.com | 2026-03-04 | 64.141.147.182 |
| mail11.graymetal.com | 2026-03-04 | 64.141.147.182 |
| mx1.graymetal.com | 2026-03-04 | 64.141.147.182 |
| comune.graymetal.com | 2026-03-04 | 64.141.147.182 |
| mailgate.graymetal.com | 2026-03-04 | 64.141.147.182 |
| antispam.graymetal.com | 2026-03-04 | 64.141.147.182 |
| po.graymetal.com | 2026-03-04 | 64.141.147.182 |
| postmaster.graymetal.com | 2026-03-04 | 64.141.147.182 |
| server.graymetal.com | 2026-03-04 | 64.141.147.182 |