| Date | IP Address |
| 2021-06-06 | 5.175.14.102 (ClassC) |
| 2026-03-04 | 92.205.171.218 (ClassC) |
| Date | Domain | IP |
| mailin.norbertmayr.com | 2025-12-28 | 92.205.171.218 |
| imap.norbertmayr.com | 2025-11-24 | 5.175.14.102 |
| authsmtp.norbertmayr.com | 2026-03-04 | 92.205.171.218 |
| mailhost.norbertmayr.com | 2026-02-03 | 92.205.171.218 |
| gw.norbertmayr.com | 2025-12-21 | 92.205.171.218 |
| gateway.norbertmayr.com | 2026-03-04 | 92.205.171.218 |