| Date | IP Address |
| 2021-04-17 | 134.0.9.126 (ClassC) |
| 2026-02-26 | 185.42.104.39 (ClassC) |
| Date | Domain | IP |
| smtp01.fislex.es | 2025-12-31 | 185.42.104.39 |
| mail1.fislex.es | 2025-07-29 | 185.42.104.39 |
| imap1.fislex.es | 2026-01-13 | 185.42.104.39 |
| smtp1.fislex.es | 2025-12-31 | 185.42.104.39 |
| pop3.fislex.es | 2025-08-17 | 134.0.13.163 |
| 329502311754128559.fislex.es | 2025-10-03 | 185.42.104.39 |
| mailgate.fislex.es | 2025-12-31 | 185.42.104.39 |
| mailout.fislex.es | 2025-12-31 | 185.42.104.39 |
| www.fislex.es | 2026-02-26 | 185.42.104.39 |
| mailx.fislex.es | 2025-07-29 | 185.42.104.39 |
| relay.fislex.es | 2025-12-31 | 185.42.104.39 |