| Date | IP Address |
| 2021-02-28 | 217.76.132.254 (ClassC) |
| 2026-02-14 | 217.76.130.44 (ClassC) |
| Date | Domain | IP |
| mail10.sierraluz.com | 2025-06-15 | 217.76.130.44 |
| mx10.sierraluz.com | 2025-08-29 | 217.76.130.44 |
| mx20.sierraluz.com | 2025-08-02 | 217.76.130.44 |
| mx0.sierraluz.com | 2026-01-21 | 217.76.130.44 |
| mail11.sierraluz.com | 2025-07-26 | 217.76.130.44 |
| mail1.sierraluz.com | 2025-10-11 | 217.76.130.44 |
| ms1.sierraluz.com | 2025-06-29 | 217.76.130.44 |
| ns1.sierraluz.com | 2025-06-19 | 217.76.130.44 |
| imap2.sierraluz.com | 2025-09-18 | 217.76.130.44 |
| ns2.sierraluz.com | 2025-08-13 | 217.76.130.44 |
| mx2.sierraluz.com | 2026-02-14 | 217.76.130.44 |
| mail3.sierraluz.com | 2025-07-16 | 217.76.130.44 |
| pop3.sierraluz.com | 2025-06-13 | 217.76.130.44 |
| mail5.sierraluz.com | 2025-06-09 | 217.76.130.44 |
| mx5.sierraluz.com | 2025-06-09 | 217.76.130.44 |
| mail7.sierraluz.com | 2025-12-31 | 217.76.130.44 |
| mail8.sierraluz.com | 2026-02-14 | 217.76.130.44 |
| exchange.sierraluz.com | 2025-07-22 | 217.76.130.44 |
| comune.sierraluz.com | 2025-06-10 | 217.76.130.44 |
| mail.comune.sierraluz.com | 2025-09-14 | 217.76.130.44 |
| gate.sierraluz.com | 2025-08-13 | 217.76.130.44 |
| outmail.sierraluz.com | 2025-06-14 | 217.76.130.44 |
| newmail.sierraluz.com | 2025-06-09 | 217.76.130.44 |
| m.sierraluz.com | 2025-06-15 | 217.76.130.44 |
| antispam.sierraluz.com | 2025-06-18 | 217.76.130.44 |
| mailin.sierraluz.com | 2025-06-14 | 217.76.130.44 |
| correo.sierraluz.com | 2025-07-17 | 217.76.130.44 |
| imap.sierraluz.com | 2025-08-10 | 217.76.130.44 |
| mailer.sierraluz.com | 2026-02-14 | 217.76.130.44 |
| postmaster.sierraluz.com | 2025-06-14 | 217.76.130.44 |
| mails.sierraluz.com | 2025-07-07 | 217.76.130.44 |
| ms.sierraluz.com | 2025-07-14 | 217.76.130.44 |
| ns.sierraluz.com | 2025-06-18 | 217.76.130.44 |
| host.sierraluz.com | 2025-06-07 | 217.76.130.44 |
| post.sierraluz.com | 2025-08-25 | 217.76.130.44 |
| mailout.sierraluz.com | 2025-06-18 | 217.76.130.44 |
| mailsrv.sierraluz.com | 2025-07-10 | 217.76.130.44 |
| gw.sierraluz.com | 2025-08-09 | 217.76.130.44 |
| mailgw.sierraluz.com | 2025-08-02 | 217.76.130.44 |
| mailx.sierraluz.com | 2025-08-20 | 217.76.130.44 |
| a.mx.sierraluz.com | 2025-06-12 | 217.76.130.44 |
| mailbox.sierraluz.com | 2025-07-30 | 217.76.130.44 |
| gateway.sierraluz.com | 2025-06-11 | 217.76.130.44 |